The appropriate answer is A. Photosynthesis is tied to the carbon cycle because it is the process by which plants use carbon dioxide from the atmosphere to make food. The carbon cycle is essentially the movement of carbon between the biosphere, atmosphere, hydrosphere, and lithosphere. Photosynthesis occurs as an interaction between the atmosphere and the biosphere.
Explanation:
Except in the crust, the interior of the Earth cannot be studied by drilling holes to take samples. Instead, scientists map the interior by watching how seismic waves from earthquakes are bent, reflected, sped up, or delayed by the various layers.
<u>Answer:</u>
<em>4. Amount of food produced in an area
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<u>Explanation:</u>
Agriculture yield is important thing in primary sector, it measures the amount of food produced in an area. Before Green revolution, India’s food grain production is not self sufficient to their own people, so India plan to launch the Green revolution. They approach the Norman Borlaug for implement the green revolution who is the Father of Green revolution. Then, India concentrate on High yielded variety (HYV) seeds, fertilisers subsidy, sufficient drainage for crops and so on. Green revolution increase our main food grains Rice and Wheat, HYV seeds give high yield than traditional agriculture method.
The five stages of the demographic transition model. Total<span> population is low but it is balanced [balanced: A population is in balance when birth rates equal death rates. ] due to high birth rates and high death rates. Total population rises as death rates fall due to improvements in health care and sanitation. hope this helps you</span>
