Coal deposits in Antartica (cold) indicates that it once had a tropical climate (had trees and swamp plants) A. True B. False

This statement is completely true as the prime suspect is a gradual reduction of CO2 in the atmosphere, combined with a 'trigger' time when Earth's orbit around the sun made Antarctic summers cold enough for ice to remain frozen all year round.

About 90 million years ago, West Antarctica was home to a thriving temperate rainforest, according to fossil roots, pollen and spores recently discovered there, a new study finds. This scorching climate allowed a rainforest. The rest of the continent was a desert btw

Answer- True

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds