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(a)C,A,D,BEXPLANATION:We should TAKE some SEEDS and soak in water after soaking them we should COVER them with a cotton cloth & wait for it to sprout & after it's sprouted we should split them and we can OBSERVE the parts

Option (d) : gets deviated and BENDS towards the THICKER part (BASE) of the prism.

option AExplanation:in CONVEX LENS the position of the IMAGE always will be LESS than the focal LENGTH. so option A is correct which is 12.7cm(less than focal length).

Option (c) is correct.Explanation:The image of the object placed at a very large distance compared to the focal length of a lens or a mirror is formed at the FOCUS, which is at the distance of the focal length of the mirror or the lens.Let's CHECK all the option:a) Concave lens of focal length 10 cm: A concave lens always forms virtual IMAGES and the virtual images can not be obtained on a screen. Thus, it is not possible for the device 'X' to be a concave lens.(b) Convex lens of focal length 20 cm:Though a convex lens forms real images, but it always forms images on the opposite side of the lens from where the object is placed and since the image on the screen from the device 'X' is obtained on the same side as the object, THEREFORE, it is again not possible for the device 'X' to be a convex lens. (c) Concave mirror of focal length it) cm: Concave mirror forms real images of the OBJECTS and also it forms images on the same side where the object is placed, it is possible that the device 'X' could be a concave mirror.But the object is placed at a large distance, therefore its image will formed at the focus of the mirror, i.e., at the distance of the focal length of the mirror.Since, the screen is placed at distance 20 cm where the image of the object is obtained therefore, the focal length of the mirror should be 20 cm.Thus, this mirror can also not be the device 'X'.(d) Concave mirror of focal length 20 cm:Due all the reasons mentioned in part (c), concave mirror of focal length 20 cm is the device 'X'.

IT IS BECAUSE OF REFRACTION.In physics, refraction is the change in direction of a wave PASSING from one MEDIUM to another or from a gradual change in the medium. Refraction of light is the most COMMONLY observed phenomenon, but other WAVES such as sound waves and water waves also EXPERIENCE refraction. How much a wave is refracted is determined by the change in wave speed and the initial direction of wave propagation relative to the direction of change in speed.

Mendel CHOOSE garden pea for his experiment because of the following reasons: ... It is easy to cross-pollinate the plant because pollen from one plant can be introduced to the stigma of another plant by removing of anthers. Mendel DEMONSTRATED that TRAITS can be either dominant or recessive through his monohybrid cross. He crossed true-breeding tall (TT) and dwarf (tt) pea plants. ... They APPEARED tall only because the tall trait was dominant over the dwarf trait. This shows that traits may be dominant or recessive.

Male reproductive organs are STAMENS, which consist of a FILAMENT and anther. ... The female reproductive organs or sex organs in the angiosperms is the pistil (also called as carpel). It is the wholestructure which CONSISTS of stigma, STYLE and ovary. Pollens and OVULES are thereproductive parts of angiosperms.Explanation:

mf=-2cm m=-2cmu=-30cmm=-v/u-2=-v/-30v=-60cmnow,1/f =1/v +1/u1/f =-30-60/180f=-2cmNow,if OBJECT is moved 10CM towards mirror,it will FORM real and INVERTED IMAGE.Also,it will form a diminished image

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1 They LEAD to FLOOD2 They destroy the AQUATIC life

The electronic configuration of the elements X, Y and Z can be written as: X-2,5 Y-2,6 Z-2,7 (a) Since all the elements consists two valence shells, therefore all will belong to PERIOD 2nd GROUP to which X belongs = 10+5 = 15 Group to which Y belongs = 10 +6 = 16 Group to which Z belongs = 10+7 = 17 (b) The elements can be arranged according to the DECREASING order of atomic radii as follows: X>Y>Z. This is because size of the atom decreases when moving from left to right in a period. (c) When X combines with Z Valency of X=3 Valency of Z =1 Cross multiplying the valences X\/Z 3/\1The compound formed is XZ3

The affluent life style of few persons RESULTS in overuse of natural resources and in long term EFFECTS it can LED to scarcity of resources. For example: usage of personal VEHICLES instead of public transport increases CONSUMPTION of fuel, pollution etcHope this will help you

Forests are 'biodiversity hot SPOTS'. The STATEMENT is completely JUSTIFIED because forest consists of different lifeforms such as bacteria, fungi, plants etc, and can be termed as biodiversity hot-spot as biodiversity of a particular area is defined by no. of species found in the PLACE.

arvesting is a technique of CAPTURING rain water when it falls and taking measures to KEEP the water CLEAN. This wTater is stored underground that remains UNPOLLUTED, it recharges wells and provides moisture for vegetation over a wide area.please MARK it as a brainlist please plz

the QUESTION is IMPROPER EXPLANATION:MAKE it CLEAR

a. CARROT and raddishExplanation:I WOULD SELECT OPTION a

The embryo of PEA SEEDS consists of three main PARTS – plumule, radicle and TWO COTYLEDONS.

C) CASTOR OIL and Sodium HYDROXIDE will be the best COMBINATION.

(a) Twinkling of stars: Twinkling of stars is due to ATMOSPHERIC refraction of star light. The star light after entering the earth's ATMOSPHERE undergoes refraction in a continuous manner before it REACHES the Earth. ... (B) The advance sunrise and sunset OCCURS due to phenomenon of atmospheric refraction.

d)CALCIUM CHLORIDE, MAGNESIUM chloride

oncave mirror of focal length =f= 12cmi)To get an ERECT image the object must be placed between Pole and Focus :object must be placed  LESS than 12cmII) Nature of image formed :Image is formed BEHIND mirrorVirtualErectEnlargedRefer the attachment for ray diagramiii) When object is placed 24cm from the mirror then image will be formed CBecause object is on CNature of imageSame size real INVERTED

vironmental conservation is important for many reasons, including protecting the ozone layer, maintaining animal and human food chains, preserving potable water and making efficient use of non-renewable resources. According to The NATURE CONSERVANCY, serious environmental damage often takes years to manifest obvious symptoms. Environmental conservation seeks to prevent dormant damage through measures such as proactive management and ecologically sustainable energy production.(b). The Blue and Green Dustbins are used to SEGREGATE two different kinds of wastes, the green is meant for wet wastes while the blue one is for dry waste. Waste segregation is done to easily separate the wastes based on their process of recycling.Remember just keep in mind that Green color is related to living beings such as plants and trees. Thus it means that we have to THROW the ‘Wet’ trash in the Green color bins and the remaining in the Blue Color bins.(c). That student is responsible towards our environment and cares for it he/she is putting efforts for conservation of our environment for our better future.Hope it will be helpful for you....If you like my answer do follow me...And need your support plz mark me as brainliest....❤

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(i) a. The centre of the spherical SURFACE of the mirror, is called the pole of the mirror. It lies on the surface.(i) b. The CENTER of Curvature of a spherical mirror is the point in the centre of the mirror which PASSES through the CURVE of the mirror and has the same TANGENT and curvature at that point.(i) c. The principal axis of a spherical mirror is a line going through the center of the mirror that is exactly perpendicular (sometimes said "normal") to the surface of the mirror.(i) d. The principal focus of a spherical mirror is a point on the principal axis of the spherical mirror at which, the light rays which are parallel to the principal axis actually converge (meet) or appear to diverge after reflection.(ii) a. Concave Mirror

A)SATURATED hydrocarbons : in saturated hydrocarbons all Carbon atoms are bonded to other carbon atoms through carbon - carbon SINGLE bonds.Unsaturated hydrocarbons :In unsaturated hydrocarbons their exists carbon = carbon double bond or carbon =- carbon triple Bond.CHEMICAL TEST to distinguish between saturated and unsaturated compounds : 1.BY BAEYER'S REAGENT : An alkaline solution of KMnO4 is known as Baeyer's reagent .Take a small amount of saturated and unsaturated compounds in two different test tubes. A drop of Alkaline solution of KMnO4 is added to both the test tubes. The pink colour of Alkaline KMnO4 solution gets discharged in the test tube containing unsaturated compounds, while the pink colour of Alkaline KMnO4 solution does not get decolorize (no change) in the test tube containing saturated compounds.2. BY BROMINE WATER : The colour of bromine water is brown.•With bromine water saturated compounds do not decolourise bromine water.•With bromine water unsaturated compounds decolourises the bromine water.B)The products formed when Ethane burns in air with oxygen are carbon dioxide ,water and carbon monoxide C2H6 + 3O2 = CO2 + CO + 3H2O + Combustion.C) CH4 + CL2 → CH3Cl + HCl In the presence of sunlight, chlorine replaces the hydrogen atoms of METHANE one by one, so it is called a substitution reaction. PLEASE MARK ME AS BRAINLIEST

morning SUN is at the origin sunlight has to travel a long distance from the THICK LAYER of air the colloidal particles in the sky like molecule of the air scketeraway COLOR of shoter wave BLUE.

three CONTRACEPTIVE methods to prevent being pregnant are a. condoms for menb. copper t and LOOP for WOMEN c. using pills to control hormonal balance

(i) When a ray, passing through focus strikes concave or convex mirrors, the reflected ray will pass PARALLEL to the principle axis. The size of image FORMED is same as the OBJECT, is PLACED at CENTRE of curvature.

(a) MENDEL DEMONSTRATED that traits can be EITHER dominant or recessive through his monohybrid cross. He crossed true-breeding TALL (TT) and dwarf (tt) pea plants. ... They appeared tall only because the tall trait was dominant over the dwarf trait. This shows that traits may be dominant or recessive.

lcium OXIDE = CaOii)ATOMIC radius of calcium is smaller than that of potassium i)calcium is a METAL (ALKALINE earth metal)

Electronic configuration of M= 2,8,2Number of valence electron of M=2valency of M = Number of valence electrons = 2Valency of the nitrate ion (NO3)- = 1Valency of the SULPHATE ion (SO4-2) =2Valency of PHOSPHATE ion (PO4-3) =3The formulae of nitrate ,sulphate and phosphate formed by M are M(NO3)2, MSO4, and M3(PO4)2 respectively.Since the valency of M is 2 and the atomic number of M is 12 such as (2,8,2), this element belongs to the group 3 and PERIOD 3 of the periodic table. This element will TEND to form an ionic compound by losing two valence electrons to achieve a noble gas electronic configuration, that is a STABLE octet in the valence shell.

(i) C₃H₆(ii) C₅H₈Explanation:The correct question is :WRITE the NEXT homologue of each of the following : (i) C₂H₄ (ii) C₄H₆Homologous SERIES is a group of compounds with SIMILAR chemical properties who share the same general formula.Every compound in a Homologous series DIFFER from the successive member by CH₂.Therefore, the next homologue of C₂H₄ will be C₃H₆ and the next homologue of C₄H₆ will be C₅H₈Hope this helps.

Concave mirror is a mirror , which is bulged inside. It is used as shaving mirrors, and ALSO by doctors for examining  teeth.Concave mirror always produce real and inverted image , except in one case , where the image is formed virtual and erect , when the object is placed very near to the mirror(between P and F). Magnified image - Highly ENLARGED image ( size of image > size of object)(i) When the object is placed at F , the image is formed at infinity.(ii) When the object is placed between P and F ,magnified image is formed.Differences :-In the first case (i) , 1. The image is formed at infinity . 2. Size of image is highly enlarged.3.Also , the image is real and inverted.In the second case (ii) , 1. The image is formed BEHIND the mirror. 2. Size of  image is  enlarged .  3.Also, the image formed is virtual and erect. Explanation:

tion:At the time of swadeshi MOVEMENT, a tricolour flag ( red,green and yellow)was designed by Mahatma Gandhi. It's features are: 1.)It had eight LOTUSES representing the eight provinces of British India. 2.) CRESCENT moon represents Hindu_Muslim COMMUNITY 3.) it had a spinning wheel in the CENTER.

Deposits from customers to the bank BECOME a direct source of their capital for busines.Explanation:Once this money is deposited, the bank holds it as capital for its bussiness.The bank then lend this money to other people who WANT loans at an intrest.The intrest from the deposited money now BECOMES the PROFIT of the bank.Through this process, the bank makes the deposited amount its source of income.

tion:The Nationalism emerged in Vietnam:The colonization of Vietnam by French brought the people of the COUNTRY into conflict with the colonisers in all areas of life.Vietnamese began REFLECTING on the nature of the loss. NATIONALIST RESISTANCE developed out of this reflection.Teachers, students fought against the colonial government’s efforts.Many religious movements were hostile to the western presence.Development in China also inspired Vietnamese nationalists.Vietnamese students ORGANIZED in association for the restoration of the anti-French independence movement changed.HOPE IT HELPS!!!

I would like to seee a logo of the body of CONSUMER PROTECTION srandardization mark.Explanation:This is because by a product BEARING this mark, then it is certified to be used by the consumer.It shows that the product has been tested and PASSED for quality check.Products with issues do not USUALLY pass the product quality check of the consumer protection body.Therefore, the right mark to check is the starndardization mark.

ISSUE SPECIFIC MOVEMENTS DIFFERENT FROM GENERIC MOVEMENTS?ANSWER:Issue-specific movements are those movements that seek to achieve a single objective within a limited time PERIOD. Whereas the General (or generic) movements are those movements that seek to achieve a broader goal in the very LONG term.Please mark it as the BRAINLIEST answer...An humble request!!!

The Revolutionary movements in Europe gained momentum after 1815. In some countries revolutionaries WANTED to overthrow autocratic rulers whose only aim was to suppress the nationalist movement. The rise of nationalism resulted in creating awakening in almost all countries. Social, political and ECONOMIC reforms were the basis of some revolutions. These revolutions were directed against despotism. Lords and some other prominent persons led these revolutions in GREECE, Poland, South America and Germany. The most noteworthy revolutions were those of 1848. There was a revolt in Italy. France became a REPUBLIC.

udent,◆ ANSWER -(C) Oil, soap● Explaination -REACTION mentioned here is saponification reaction involving formation of soaps.When oil is treated with SODIUM hydroxide, it gives sodium soap and glyceride.Oil + Sodium hydroxide --> Sodium soap + GlycerideHence, here -LIQUID A = OilSolid B = SoapThus, option (C) oil, soap is the answer.Hope that iz helpful. Thanks dear...