Darwin went to the continents of Africa and South America, wherein both of them have a tropical grassland/Savanna biome. The grasslands in these continents gave him a chance to notice that species do vary globally. He observed the similarities between the different large, flightless birds species–rheas, ostriches, and emu.
Answer:
is ther more to the question
Well, other than coal. They use the coal as fuel to drive boilers in producing steam that drives the turbines to create electricity. So it would be water.
Answer: mountain and coastal plains
Explanation: i just took the exam
The Potential Energy of an object depends upon its position.