Well Selective breeding is where animals will mate with others who has Positive traits that they'd like there young/ken to have. We tare down trees which kills animals and also we kill animals for food or whatever which decreases the population. If i didn't completely answer the question just say and ill respond quickly to help!
I believe the answer is B. they respond to stimulli
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Answer:
In the process of photosynthesis, trees tend to take up carbon dioxide and water and convert it into oxygen and glucose. In this way, trees help in reducing the amount of carbon dioxide from the air which is otherwise a source of global warming. The process of photosynthesis also yields oxygen which is beneficial for life on earth.
The trees also store carbon inside them hence, reducing global warming. The more the trees, the more will be the chances of carbon being reduced from the atmosphere and being stored in the trees.
Plant processes like transpiration help to lower the temperature around them. Hence, more the trees, lesser will be the rise in temperature.