Answer: Giving birth only in the spring and summer ensures that offspring are born when food is most available.
Explanation:
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.
They reproduce over the years making it less frog to survive
Chloroplasts because that is the substance that gives leaves its green colour and also helps in photosynthesis