How much is astronomical co2 increasing every year is the rate of increase stable

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs