Plz help me it due in a hour

What is the mrna strand that would be copied from this dna strand

Which sequence correctly shows the path of carbon dioxide during repiration?

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere