Ok I don't know what chart it is (that would really help) but the global population is around 7 billion not 80 million so unless the chart is from a long time ago (when the population was smaller) I'd go with B. The global population is about 80,000,000
The strength of the sun can cause droughts and dry land. Water can cause weathering and erosion (breaking away at land) snow can cause avalanches to break things and land rain can cause floods and and also can cause weathering to break away and make land smaller
