Answer:
Sediments are used to provide the proxies to understand the environmental changes as, the sediments are formed by the activity of the weathering from the wind, glacier and the water. The different weathering agent and other transportation agent are different types of the mark over the sediments that help in the study of the past environment.
A vast, flat,treeless arctic region of Europe,Asia,&& North America in which the subsoil is permanently frozen.
The answer is <u>C; biosphere and lithosphere</u>.
Hope this helps :)
I would say B. Ever hear the phrase, "warm air rises"?
At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy. The outer core is about 1,355 miles (2,180 km) thick.