The answer for the above question is carbon dioxide.
Climate change is caused by various factors which includes greenhouse effect and global warming. Green house gases are responsible for warming, and humans emit them in a variety of ways. The most common being from the combustion of fuels in cars, factories and electricity production. The gas responsible for the most global warming is carbon dioxide, other contributors include methane, nitrous oxide from fertilizers among others
The bald eagle and the black bear are tetrapods, which means that they both have four limbs along with the digits. This shows that they both are the descendants of the four-limbed ancestors. However, the limbs of the bear and the bald eagle have different functions. The forelimbs of both these organisms serves different purpose. Hence, their limbs are homologous organs. The homologous organs are those which have the same ancestry but the functions are different.
Answer:
The endosymbiotic theory explains the origins of eukaryotic cells.
Explanation:
Photosynthesis puts oxygen in the atmosphere.
