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Daily practice help you to get more marks. You  should be through in ncert book. Refer some guide. Daily atleast spend 1 to 2 hours in mathematics subject it's enough to get good mark and also use some apps to clear your maths question doubts like snapsolve. It is best app to maths question problem solution. Watch more and more videos related topics, theorems etc. 

RESPIRATION is the overall process by which organisms oxidise food to release energy. In most plants, AEROBIC respiration takes place. The respiratory gases are exchanged through the stomata, tiny pores on the lower part of a leaf. The oxygen is then taken to plant cells where glucose is oxidised to produce energy in the mitochondria.

1) Ray passing through lens in a direction parallel to principal axis passes through focus on refraction. 2) Ray passing through principal focus of a lens passes in a direction parallel through principal axis on refraction. 3) Ray passing through the optical center of a lens suffers no deviation even after refraction.

On august 8, 1942 the All India Congress Committee adopted a resolution in favour of starting a mass movement. Gandhiji named it Quit India movement It is also known as Bharat Chodo Andolan. The congress demanded the immediate ending of the British rule in India. The repressive_policy and cruel atrocities_were committed on the innocent people. Mass arrests were made and thousands of Indians became the target of the British bullets.

Lencho became angery after counting money because money was less than 100 pesos means only was 70 pesos while he was demanding 100 pesos due to crop failure production to spent a good life in that year. 

The Following makes a location favourable for setting up an Industry:  These are some physical factors and human factors that affect the location of industries are: 1. Availability of Raw materials  at a lower cost.  2.Availability of power resources. 3. Availability of good land and and water.  4. Availability of services like Banking, insurance etc.  5. Favourable government Policies.  6. Availability of water and  electricity.  7. Availability of large number of skilled as well as unskilled workers to work in industry.  8. Availability of good transportation service and distribution price. 9. Availability of markets to sell final products. 

I t would lead to formation of VARIATIONS. If these variations go hand in hand with the constantly changing environment, they enhance survival rate of a species.