The correct answer is a Bar Graph.
There is a huge amount of precipitation among the countries situated in the tropical region such as Hawaii or any other tropical island due to its climatic conditions. Since a tropical region receives heat from the Sun directly, the region would eventually be warmer causing more frequent evaporation causing rain.
Explanation:
Four images are shown in each set of PET scans to highlight either ,, blood glucose levels ,, cancerous tumour cells ,, whether or not vital organs are working correctly - or if the treatment of what is being given to the patient is working or not . more than one PET image may be taken of a subject's brain to see if the results are reliable and conform to the problem .
( i think ^^ )
The answer is d because natural selection is the process in which organisms adapt to their environment and all of these answers fall into examples of natural selection