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tion:ACCORDING to the definition of the pure SUBSTANCE all of the given options are pure substance. ... pure substances include elements and compounds. They have same BOILING and melting point. In addition to this a pure substance which is made up of GOLD consists of only particles of gold.

wering plant of the class Monocotyledonae, having a single EMBRYONIC SEED leaf, LEAVES with parallel veins, and flowers with parts in THREES: includes grasses, lilies, palms, and orchidsOften shortened to: monocot Compare dicotyledon.followme MARK as brainlist｡◕‿◕｡

tion:Force is a PUSH or a pull acting on an OBJECT which changes or tends to change state of rest or MOTION of an object. 1.Force can change the state of rest or motion of an object. 2. Force can change the SHAPE of an object

y NAME ARBAAZ ag 18 PUNJAB Rajpura NUMBER 8699165784

The amount of heat REQUIRED to CONVERT one UNIT amount of substance from the solid phase to the liquid phase — LEAVING the temperature of the system unaltered — is known as the latent heat of fusion. ... It is also equal to the enthalpy difference between the solid and liquid PHASES, ΔHSL.Explanation:Make me Brainlist AND PLEASE FOLLOW I

Answer: Air layering or MARCOTTING is relatively simple to PERFORM. With a SMALL number of PLANTS, it can produce more layers with less skill, effort and equipment.

Pickling, drying, CANNING, fermenting, freezing and CURING are all methods you can use to make food last longer, thus REDUCING waste. Not only will these methods shrink your carbon footprint, they will SAVE you money as WEL

CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the SUN. This exposes more people to UV radiation, which can CAUSE SKIN cancer. Additionally, increased contact with ultraviolet rays can cause cataracts, MACULAR degeneration and other eye damage.Explanation:✌✌

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hQ4 From which PART of the plant COTTON and jute are OBTAINED | LIDO Solution: (a) Cotton is obtained from the fruit of the cotton plants. The cottonseed which is a fruit which on ripening splits OPEN to release white fibers of cotton. (B) Jute is obtained from the stem of the jute plant.

What is Candle Flame?Introduction to candle flame concept tells about the components and structure of flame. Candles produce light by releasing heat and all the turn on the candle produces COME from a chemical REACTION known as COMBUSTION in which wax reacts with oxygen in the air to produce carbon dioxide.The substances that vaporize while burning produces the flame. Kerosene oil and molten wax are the two substances that are RESPONSIBLE for producing flame while burning. Flame is defined as the area of combustion of a combustible substance. Substances that do not vaporize during burning, do not produce the flame.Structure of Candle FlameIn a general candle, flame colour depends on three factors:Nature of the substance that undergoes combustionAmount of oxygen andTemperatureThere are two types of flames:Non-luminous flame andLuminous flame

hope it helpsExplanation:It is a route in which N2 in the atmosphere is CONVERTED into AMMONIA by prokaryotes using an enzyme complex (Nitrogenase), and an N pool is maintained in the ecosystems, which replenishes N losses. ... BNF occurs naturally in the SOIL by N fixing bacteria (Rhizobium and legumes/Azotobacter).

Consciousness, at its simplest, is sentience or AWARENESS of internal and external EXISTENCE. Despite millennia of analyses, DEFINITIONS, explanations and debates by PHILOSOPHERS and scientists, consciousness remains puzzling and controversial, being "at once the most FAMILIAR and most mysterious aspect of our lives".

Some metals OFTEN lose their shine and appear dull, because of the ACTION of air and moisture on them. Some metals as a result of oxidation with the ATMOSPHERIC oxygen form oxides and by which their APPEARANCE becomes dull.

name               age             AVERAGE ageriya                  7                      5remya              9                      7pugazh            6                       5sumaya           11                       6joshina             13                     7thania                12                   6harish                14                   6me                     12                    5Explanation:In total, your CHILD will have 20 baby teeth to chow down their snacks. Your baby will begin to gain teeth around 6 MONTHS of age, and this will continue until around the age of 3. From the age of 6, your child will eventually lose all of their baby teeth by the time they're 12 years old.

a. HYDROCHLORIC acidpls MARK as BRAINLIEST

Here's how to make a sample of a toy telephone  Material needed is as follows - 1. Two paper clips 2. Two paper cups 3. About 3 yards (2.7 meters) of string 4. Pin Here's what to do -: Make a hole in the CENTER of the base of both cups, using the pin. Tie ONE paperclip to one end of the string. Pull the other end of the string through the hole in one of the paper cups. The paperclip should be inside the paper cup. Insert the free end of the string into the hole in the bottom of the second paper cup. Insert it from the outside of the cup. Pull enough string through the hole to enable you to tie the second paperclip to the end of the string. Pull the cups apart so that in each cup the paperclip rests flat on the floor of the cup and the string is taut. take one cup, and have a friend take the second cup. Walk away from each other until the string is taught you're now ready to USE your paper cup phone. Another process is..equipment REQUIRED for a set of experiments involving an electroscope: When the glass rod is rubbed with silk, the silk strips electrons from the rod, leaving it a positive charge. When the hard RUBBER rod is rubbed with wool, it gains electrons from the wool, gaining a negative charge

The flytrap requires nutrient-free soil that provides good drainage and aeration. USE a standard soil MIXTURE of 1 part peat moss and 1 part PERLITE. Never use potting soil, compost or FERTILIZER.

se feet of AMOEBA are used fora) Movement ONLYB) CAPTURE of food onlyc) capture of food and movement d) exchange of gases only

Sound waves enter the outer ear and travel through a narrow passageway called the ear CANAL, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes. The bones in the middle ear amplify, or increase, the sound vibrations and send them to the cochlea, a snail-shaped structure filled with FLUID, in the inner ear. An elastic partition runs from the beginning to the end of the cochlea, SPLITTING it into an upper and lower part. This partition is called the basilar membrane because it serves as the base, or ground floor, on which key hearing structures sit. Once the vibrations cause the fluid inside the cochlea to ripple, a traveling WAVE forms along the basilar membrane. Hair cells—sensory cells sitting on top of the basilar membrane—ride the wave. Hair cells near the wide end of the snail-shaped cochlea detect higher-pitched sounds, such as an infant crying. Those closer to the center detect lower-pitched sounds, such as a large dog barking. As the hair cells move up and down, microscopic hair-like projections (known as stereocilia) that perch on top of the hair cells bump against an overlying structure and bend. Bending causes pore-like channels, which are at the tips of the stereocilia, to open up. When that happens, CHEMICALS rush into the cells, creating an electrical signal. The auditory nerve carries this electrical signal to the brain, which turns it into a sound that we recognize and understand.

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chapter 1 class 7 notes ,I hope this would help youliving and non livingExplanation:Introduction to Nutrition in PlantsLiving and Non-Living OrganismsLiving organisms like human beings, plants and animals need food to survive and exist.Living organisms reproduce, respond to the environment and also adapt.Living organisms respire and excrete as well.CellsCells are tiny units that help make up a living organism. Hence, they are also called building blocks of an organism.A cell is constituted of three major parts :A thin outer layer called the cell membrane.A spherical structure located at the centre of the cell called a nucleus.A jelly-like substance that SURROUNDS a nucleus called the cytoplasm.To know more about Cell, visit here.Single and Multi-Cellular OrganismsOrganisms that are made up of just one cell are called single-celled or Unicellular organisms. E.g. AmoebaOrganisms with more than one cell in their body are called multicellular organisms.All human beings, plants and animals are multicellular organisms.To know the difference between Unicellular and Muti-Cellular Organisms, visit here.NutritionNutrition is the mode of taking food by an organism and its utilisation by the body.Nutrition is very important as the nutrients from the food consumed enables living organisms to build their bodies and GROW.Nutrition helps to repair damaged parts and organs.Nutrition also provides energy for carrying out various functions.Autotrophs and HeterotrophsOrganisms that make food themselves are called autotrophs.Plants are an example of autotrophs as they make their own food using carbon dioxide, water and light energy.Organisms that rely on others and usually take in ready-made food made by the autotrophs are called heterotrophs.Animals and human beings are an example of heterotrophs as they depend on plants in MANY ways for their food.To know the difference between autotrophs and heterotrophs, visit here.PhotosynthesisPhotosynthesis is the PROCESS of synthesis of food by green plants.This process usually takes place in the leaves of plants.The process requires chlorophyll (green coloured pigment), sunlight, carbon dioxide and water. OrganellesOrganelles are tiny cellular structures inside a cell and perform SPECIFIC functions that are important for the cell.They are found in the cytoplasm of a cell.E.g. Chloroplast is the cell organelle that carries out photosynthesis.ChloroplastsThe chloroplast is a type of organelle that exists in plants.These organelles contain chlorophyll, the green coloured pigment that is responsible for carrying out the process of photosynthesis in plants.ChlorophyllChlorophyll is the pigment that is responsible for the synthesis of food in green plants.This pigment green colour to its bearers and is abundantly found in leaves.Chlorophyll is locked inside the chloroplast.Process of PhotosynthesisThe process of photosynthesis takes place in the leaves, the “food factory” of the plants.Carbon dioxide is taken in through tiny pores on the leaves called stomata.Water and minerals that are required for the process are transported to the leaves from the roots through the stem.Chlorophyll helps the leaves use the energy from the sunlight to prepare food using the carbon dioxide, water and minerals.Oxygen is released as a by-product of this process.The equation can be given as:Nutrients Being Replenished in SoilNutrientsPlants absorb mineral nutrients from the soil in order to make their own food and for other important processes.Soils need to be enriched with nutrients such as nitrogen, phosphorus, potassium etc regularly.Only then can we grow plants and keep them healthy.There are 17 most important nutrients for plants.6 are called macronutrients and rest are called micronutrients.Macronutrients are required in large quantities while micronutrients are required in very small quantities.To know more about Soil Fertility:Other Modes of NutritionSymbiotic RelationshipOrganisms that live together and share their shelter and nutrients are said to be in a symbiotic relationship.

tion:force is a PUSH or PULL upon an object resulting from the object's interaction with another object. Whenever there is an interaction between TWO objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.Frictional Force: Gravitational ForceTension Force: ELECTRICAL ForceNormal Force: Magnetic Force

MaterialsHard-rubber combGlass rodPiece of SILK or nylonTwo PIECES of polystyrene foamTwo pieces of string or threadRing stand and ringAluminum foilPaperTowel ProcedureSafety Note: Electrostatic forces are very sensitive to the environment. As you conduct this activity, be careful not to get fingerprints on the materials. Do not allow the materials to touch your clothing. Make sure classroom windows are closed. Because humidity greatly affects electrostatic forces, conduct the activity in an air-conditioned room. Do not conduct this activity on a metal table. You may have to repeat each step several times, taking these precautions each time.Clean the hard-rubber comb and glass rob. Remove all of the water with a towel. Tear up the paper into tiny pieces. Make a small pile of the pieces of paper.Produce a negative (–) charge on the comb by rapidly passing it through dry, greaseless hair (straight hair works BEST). Bring the CHARGED comb near the pile. Record what you observe.Produce a positive (+) charge on a glass rod by rapidly rubbing it with silk or NYLON. Bring the charged rod near the pile. Record what you observe.

1.Nutrients(B)2.Enery GIVING FOOD(C)3.Vitamins(D)4.Iodine(A)5.Fats(A)6.Glucose(A)EXPLANATION:

Fatsmay bhopefullyhopefully

(B) to remove chlorophyll is the right optionHope it helpsPlease MARK me as brainliest and FLW me PLEASE

tion:force is a PUSH or pull upon an OBJECT resulting from the object's interaction with another object. Whenever there is an interaction between two OBJECTS, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.Frictional Force: GRAVITATIONAL ForceTension Force: Electrical ForceNormal Force: Magnetic Force

40mExplanation:distance=speed×time4×10=40mmark it as BRAINLIEST

' In a tug-of-war , when the TWO teams are PULLING the ROPE, a STAGE comes when the rope does not move to either SIDE at all '. Which of the following is the correct reason for this ?

The process by which plants make food is photosynthesis. Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis requires sunlight, chlorophyll, WATER, and carbon dioxide gas. Chlorophyll is a substance in all green plants, especially in the leaves. Plants take in water from the soil and carbon dioxide from the air.  AUTOTROPHS are the class of plants that are capable of preparing their own food.Plz mark as BRAINLIEST..

Litmus solution is extracted from LICHENS. It is USED to DETERMINE the solution is neutral/acidic/basic. It has a mauve (purple) COLOUR in distilled WATER.

tion:FOOD grains are PRODUCED by farmers in the fields. The farmers have to produce them and while doing so, they have to use a lot of pesticides and insecticides and many such harmful chemicals to KEEP insects and germs AWAY . The grains produced this have a lot of pollutants on their surfaces and must be WASHED

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mark me as BRAINLIEST hope it helpsExplanation:Radiation is energy that comes from a SOURCE and travels through SPACE at the SPEED of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also CALL radiation “electromagnetic waves”

.<>tion is any liquid or frozen water that forms in the ATMOSPHERE and falls back to the Earth. It comes in many forms, like RAIN, sleet, and SNOW. ... Precipitation forms in the clouds when water VAPOR condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the EarthXXmr.timepaasX03

tion:These include table salt, HIMALAYAN pink salt, kosher salt, SEA salt and Celtic salt, just to NAME a few. ... Not only do they differ in taste and texture, but also in mineral and SODIUM content.

Thermosoftening (also CALLED thermoplastics) are plastics which will soften when HEATED and can be RESHAPED. Thermosetting plastics are plastics do not soften on HEATING. They are used when RESISTANCE to heat is important (eg kettles, plugs, laptop chargers etc).Explanation:mark as BRAINLIEST answer plz plz

☝︎Iɴ ᴛʜɪs (ᴀ) ɪs ᴛʜᴇ ʀɪɢʜᴛ ᴀɴsᴡᴇʀExplanation:#Queen♥️

hey you answer is hereExplanation:acids are SOUR in taste and bases are BETTER and taste acids TURN blue litmus PAPER into red and bases turn red litmus paper into blue colour thank you please mark me as brainliest