This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 72701. |
Hydroelectricity defination |
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Answer» ectricity is electricity made by generators that are pushed by MOVEMENT of water. It is usually made with dams that BLOCK a river to make a reservoir or collect water that is pumped there. When the water is released, the pressure behind the dam forces the water down pipes that lead to a TURBINE. Hope it HELPS you ItzRiya✌️ |
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| 72702. |
Properties of Metalloids :- |
| Answer» METALLOIDS have a solid STATE of matter. In general, metalloids have a metallic LUSTER. Metalloids have low elasticity, they are very brittle. Middleweights are semi-conducted elements, and they allow leave the AVERAGE transmission of heatExplanation: | |
| 72703. |
23. What does the slope of a Distance-Time graph of an object depict? |
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Answer» The gradient of a distance-time GRAPH REPRESENTS the SPEED of an OBJECT. The velocity of an object is its speed in a particular direction. The slope on a velocity-time graph represents the acceleration of an object |
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| 72704. |
The smell of soap is very nice but it's taste is very bad...Then the smell of cowdung is bad but will it taste be good??? plz ans the ques guysss |
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Answer» hmmm......firstly....are U depressed Explanation:if u like cowdung u eat it and if u like the taste then it's good but if u DIE it's not |
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| 72705. |
Which insect visited the flowers the most times? |
| Answer» E the insects who visited the flower the most timeshope you LIKE the ANSWER please MARK as a BRAINLIEST | |
| 72706. |
Which insects visited the flowers the fewest times? |
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Answer» The insects which don't USE nectar oftenly.plz MARK as the brainliest answer or follow me plz plz. |
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| 72707. |
What is the chemical formula of baking soda |
| Answer» NAHCO3............. | |
| 72708. |
Why we respir ? what is the meaning of respir |
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Answer» the meaning of respiration? Ans: Respiration is the BIOCHEMICAL process in which the cells of an organisms obtain ENERGY by COMBINING OXYGEN and glucose resulting in the release of carbon dioxide, water .mark as brainliest and FOLLOW me. |
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| 72709. |
Rice,bread and chapati belong to protein group cereal group vegetable group milk group |
| Answer» CEREAL groupExplanation:because they are MADE of CEREALS. | |
| 72710. |
How many times did butterflies visit the flowers? * |
| Answer» NUMBER of TIMES she wantedmark me BRAINLIEST | |
| 72711. |
Give 5 differences between "ZYGOTE" and "FOETUS". |
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Answer» tion:1)The product of FUSION of the nuclei of the sperm and EGG is called zygote. 2)It is a unicellular structure. ... Whereas foetus is actually formed by multiple divisions of zygote. 1)The STAGE of the embryo which nearly resembles a human being is called a foetus. |
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| 72712. |
Project Make a model of a biogas plant andmake a presentation in the class aboutthe process of gas production. |
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Answer» have to do this is your PROJECT you should MAKE it YOURSELFAND HAPPY HOLI to you |
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| 72713. |
Give some example of scattering of light that we come across in day-to-day life |
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| 72714. |
Name three thing that attract insect to flowers |
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Answer» Explanation:Flowers are known to ATTRACT POLLINATING INSECTS through a variety of means, from alluring FRAGRANCES and nectar to VIBRANT colors and shapes. |
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| 72715. |
பயாமாறவற்றைக் கண்டறிய உதவுகிறது ? அ) கருகண்காணிப்புக் கருவி (ஆ) EEG(இ) பனிக்குடத் துளைப்பு(FF) CVSWhich one of the following technique is used to monitor the foetal heart rate and otherfunctions during late pregnancy and labour ?(a) Foetoscope(b) EEG(c) Amniocentesis(d) CVSஎதிர்ப்பொருள்களை அதிக அளவு உற்பத்தி செய்து வெளியிடும் B செல் வகையாது?(அ) கொல்லி செல்கள்(ஆ) நினைவாற்றல் செல்கள்(இ) பேசாபில்கள்(ஈ) பிளாஸ்மா செல்கள்B Cells that produce and release large amounts of antibody is called :Gal Killer Calle(b) Memory Cells |
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Answer» cannot UNDERSTANDPLS MARK as the BRAINLEST |
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| 72716. |
......what is ester..... |
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Answer» istry, an ester is a chemical compound derived from an acid (ORGANIC or INORGANIC) in which at LEAST one –OH (hydroxyl) group is replaced by an –O–alkyl (alkoxy) group. ... Esters with low molecular weight are commonly used as fragrances and found in essential OILS and pheromones.Lower classifications: Carboxylic acid, AmideHigher classifications: Alcohol |
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| 72717. |
What is reflected ray???? |
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Answer» the bouncing back of a light RAY after GETTING reflected from a surface is CALLED reflected ray |
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| 72718. |
5. The urine is formed in _ |
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Answer» the URINE is formed in the kidney which is TRANSPORTED to the URINARY bladder through the ureter |
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| 72719. |
How does the economic condition of a Nation depend on its natural resources |
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Answer» Natural resource help to FULFILL the needs of people. A country having a huge variety of Resources in a Huge amount is BENEFICIAL for that Country's Citizens to GET the resources of their need in Low price. The resources are also sent to other countries. This availability of resource help the country to GROW as well as help it by bettering the Country economic by SENDING these resources to other countries ! |
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| 72720. |
9.Blood carries towards the heart by (a) arteries(b) veins(c) capillaries(d) muscles |
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Answer» Blood CARRIES towards heart by VEINS. Veins have valves in them so that blood can flow in a FIXED DIRECTION. The blood carried by Veins is Deoxygenated. |
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| 72721. |
Revision Ex convert the following5 days to hr480 min to hr3 days to hr1500 sec to minHculate the duratio |
| Answer» 5 DAYS =120 hours480 mins=8 HOURS3 days =72 hours1500seconds =25 MINUTES | |
| 72723. |
Define blood and pulses and it's all components |
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| 72724. |
Unburnt carbon particles are released on burning of ____ fuels |
| Answer» EXHAUSTIBLE will be a CORRECT ANSWER | |
| 72725. |
What is angle of incidence? |
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Answer» it is the ANGLE made by incident RAY(a ray COMING AWAY from source) and normal(a perpendicular drwan to the surface) |
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| 72726. |
Describe the threat to the beauty of the Taj Mahal |
| Answer» ACID rain is a major THREAT to the beauty of the Taj MAHAL. When acid rains fall on the monument (that is completely made of marble), they react with marble to form a powder-like substance that is then washed AWAY by the rain. This PHENOMENON is known as marble cancer. | |
| 72727. |
identify the acids, base and salt from the given solution. 1, sodium carbonates, 2. bleaching powder, 3. lemon juice and indicators and write the inference. |
| Answer» TION:Sodium carbonate - SaltBleaching Powder - SaltLemon Juice - Acidlitmus papers: ACID blue to red and base red to blue and salt no change this above PICTURE is a code for INDICATORS | |
| 72728. |
Write the Preparation of Bleaching Powder??. Baaten ye kabhi na...tu bhulna koi tere khatir hai jee rha.. |
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Answer» aching powder is produced by ACTION of chlorine on DRY slake lime, it is represented by CaOCl2. CA(OH)2 + Cl2 ----> CaOCl2 + H2O Jaye tu kahi bhi ye sochna....koi tere khatir H jee rha....!!!Hope it will help u |
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| 72729. |
5.Pressure cookers are provided with handles.(a) Copper(b) Bakelite(c) Aluminium |
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Answer» Pressure cookers are PROVIDED with BAKELITE because bakelite are bad conductor of HEAT and electricity.I think my ANSWER is correct and if you are SATISFIED with my answer then please make it as brainliest |
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| 72730. |
Describe natural resources with reference to the following.(a) Mineral resources |
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Answer» al is a pure INORGANIC SUBSTANCE that occurs naturally in the EARTH's crust. ... Mineral resources are non-renewable and include metals (e.g. iron, copper, and ALUMINUM), and non-metals (e.g. salt, gypsum, clay, sand, phosphates). Minerals are valuable NATURAL resources being finite and non-renewable. |
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| 72731. |
What is the full from of isro |
| Answer» SPACE RESEARCH ORGANISATION | |
| 72732. |
What is green house?? |
| Answer» HOUSE is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are GROWN. These structures range in size from small sheds to industrial-sized BUILDINGS. A miniature greenhouse is known as a cold frame. | |
| 72733. |
Can a body have energy without momentum |
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Answer» Explanation:YES, a BODY can have energy without possessing momentum. A body may have potential energy and still can be at rest. This means it would have zero momentum and still it COULD POSSESS energy. E.g. A brick PLACED on the top of a building has a PE = mgh, but has got no momentum because it is not moving |
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| 72734. |
Nervous cell diagram and name |
| Answer» OPEN this image and get your answer EXPLANATION:please marked it as BRAINLIEST answer | |
| 72735. |
Short answer questions:1. Why do we need a circulatory system? |
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Answer» culatory system does a very important job in your body. It carries oxygen and essential nutrients to all cells around the body in arteries and carries the waste PRODUCTS and carbon DIOXIDE in VEINS. The average HUMAN body contains over 60,000 miles of blood vessels. |
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| 72736. |
Which use more energy in the following 1)....250 W of television set in one hour 2)....1200W of toaster in 10min. |
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Answer» 1)...250 W of TELEVISION set in one hourExplanation1)ENERGY = power*time(in h) =250*1 =250 kw/h2)energy= power*time(in h) =1200*1/6 =200 kw/h |
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| 72737. |
Why should we prevent the wastage of fuel used for vehicles |
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Answer» because the fuels we have USED in vehicles are not INFINITE we can SAVE the FUEL for future generation also |
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| 72738. |
2) The refractive index of water is 4/3 and the speed of light in air is 3 x 10° m/s. Find thespeed of light in water. |
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Answer» refractive INDEX of water=4/3 so SPEED of LIGHT in water is 2.25 10 m/s |
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| 72739. |
What is the SI unit of frequency and wavelength? |
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Answer» The UNITS of frequency are in HERTZ (HZ) or its MULTIPLES. The units of wavelength are in METERS |
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| 72740. |
What is electric coil |
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Answer» n an electric CIRCUIT, one or more TURNS, usually roughly circular or cylindrical, of current-carrying wire designed to PRODUCE a magnetic field or to provide electrical RESISTANCE or inductance; in the latter CASE, a coil is also called a choke coil (see also inductance). |
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| 72741. |
Calculate the molecular masses of H2 S o4 and and NH4Cl |
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Answer» HExplanation:I know it BRO but pls sorry to not to ANSWER because it is HARD to write its solution |
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| 72742. |
What is the full form of SONAR |
| Answer» SOUND NAVIGATION AND RANGING | |
| 72743. |
Where are the following chemical substances used in day to day life? Explain their uses and harmful effects.i) Food colours and essenceii) Dye and Artificial colours |
| Answer» FOOD colours in CAKES,icing,briyani,etcdyes in clotheshope it helpspls MARK BRAINLIEST | |
| 72744. |
What is Corona virus |
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Answer» a virus that CAUSES problems in respiratory TRACK and finally KILLS the personpls MARK as brainliest |
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| 72745. |
Write any two applications of centrifugation? |
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Answer» diagnostic laboratories for blood and urine test.Used in dairies and home to SEPARATE BUTTER from cream.Used in a WASHING MACHINES to squeeze out water from wet CLOTHES. |
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| 72746. |
Define latent heat of fusion? |
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Answer» The amount of heat energy required to CHANGE the state of 1 kg of SOLID to liquid at the melting POINT without CHANGING atmospheric temp. |
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| 72747. |
Amarind propagates vegetatively through(a) rhizome(b) roots(c) leaves |
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| 72748. |
Hardest o mineralsEExercises1.Tick() the correct option.1. Which of these sentences is not true for minerals?They are natural substancesThey are formed of crystalsThey are made from living things like plantsThey are in solid state2. Which of these is not true for gemstones?They are pure mineralsThey are preciousThey are part of rocksThey are expensive3. What is an igneous rock?A rock that is formed when magma coolsA rock formed from existing rocksA rock formed from sediments of rocksA rock that is man-made.Where are metamorphic rocks formed?On the surface of the EarthOn river banksDeep inside the Earthn on the ocean floorn rock) coolsagments of existia lakesedimentary rooature and pressurhe Earth's surfa |
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Answer» Explanation:hapter 4 Rocks and Minerals Chapter 4 focuses on Rocks and Minerals, looking at types of rocks. Lessons included in this chapter: #10 Rocks #11 Minerals #12 Igneous Rocks #13 Sedimentary Rocks #14 Metamorphic Rocks Resources for Teachers can be FOUND under the Chapter #4 Copymaster. Select from the options on the right to proceed. Rocks Lesson #10 The Earth was formed about 4.6 billion years ago. The planet was so HOT that the entire Earth was molten or liquid. As the Earth cooled, the lightest materials floated to the top and the heaviest materials sank to the center. The outer part of the Earth, the crust, consists of the lightest rock. Rock Lesson - lava flow The lightest rocks form the continents, which are made mostly of the rock granite. Most of the granite on the continents has, over millions of years, been broken down, transported, and deposited into sedimentary rock. These layers of sedimentary rock vary from 8-9 miles thick to nothing in some areas like the Canadian Shield of North America. The Canadian Shield has huge outcroppings of granite right on the surface. Under the thick layers of sedimentary rock lies the denser granite. The granitic continents ride on a much denser rock called basalt. These basalts form the bottom of our continents and the bottoms of our great oceans. This layer of rock extends down to 40 miles from the surface of the earth. Rock Lesson - Lithosphere The crust is very thin in comparison to the other layers of the earth. The crust is only 3 miles thick under the oceans and about 40 miles thick under the highest mountain chains. The layer of the earth under the crust is called the mantle. It is over 1800 miles thick!! The crust and the upper level of the mantle form a layer of the earth that moves very slowly (1-4 inches per year). This layer that moves and causes earthquakes and volcanoes is called the Lithosphere. Rocks are made of two or more different minerals that have been: 1. cemented together, or 2. squeezed and heated together, or 3. melted and cooled together. Rocks make up the majority of the Earth's crust. One of the most common rock is granite. The four minerals that make up granite are FELDSPAR, quartz, mica, and hornblende. Granite was formed when magma cooled slowly forming crystals of the four minerals that make up the rock granite. Rock Lesson - Granite 1 Look at the photo above of granite. Notice the different mineral crystals that make up the rock, granite. Most of the Earth's surface rocks are covered by soil or CLAY. Soil contains very small crushed pieces of rock and organic (plant and animal remains) material. Plants such as grass and trees grow in this region of the crust. Rock Lesson - Hawaii photo The photo above shows a recent eruption of ash that has covered and burned an area of dense vegetation in Hawaii. The lava has cooled and is now a volcanic rock called basalt. The weathering process will BREAK the basalt down into small, finer pieces of rock called soil. This process can take a few years or thousands of years to produce soil fine enough for plants to grow well in. The soil will become fertile when bacteria decomposes plant and animal material adding nutrients for living plants. Rocks are produced in a variety of ways and have been cycled in some area many times. This cycling of the rocks is called the rock cycle. Rock Lesson - Rock cycle The rock cycle shows how the earth's rocks are changed again and again. The rocks can be changed at times to another type of rock. The rock cycle can begin anywhere in the cycle. Lets start with igneous rocks. Igneous rocks start as magma. The magma (molten rock under the surface) and lava (molten rock on the surface) hardens into igneous rock. The igneous rock then breaks apart over time through the process of weathering. These bits of broken rock are washed away by rains and deposited in a river. These pieces of igneous rocks are cemented together with other bits of rock and form a sedimentary rock called conglomerate. Over time sedimentary rocks can be buried by earthquakes or other geologic processes. Being buried deep under the surface in areas of high temperatures and pressures or coming in contact with magma can cause these sedimentary rocks to change to metamorphic rocks. |
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| 72749. |
What is the diffrence between scum and lather |
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Answer» an insoluble substance that is formed when soaps react with HARD water. However, LATHER is froth or FOAM, which is formed when soaps react with SOFT water. Also, DETERGENTS form lather with both hard and soft water. |
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| 72750. |
What is casdryl ??? |
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Answer» Caladryl CLEAR (pramoxine) is an ANESTHETIC, or "numbing medicine." It works by INTERFERING with pain signals sent from the nerves to the brain. Caladryl Clear LOTION is used to treat pain or itching caused by insect bites, minor burns or scrapes, and minor skin RASH, dryness, or itching |
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