Map making is the right answer...
your answer would be D: crust and outer part of the mantel
Answer:
it is said that the Ice Ages began 2.4 million years ago and ended approximately 11,500 years ago.
Explanation:
During this time Carbon-Dioxide (a poisonous and warming gas) levels rose dramatically by about 180 ppm to 280 ppm.
This caused the major retreat of glaciers that ran across continents...
There were other gases but they were in VERY small amounts...
(APART FROM OXYGEN)
It looks like a soup ladel. The reason why it is called big is to distinguish it from the more small one. Its real name is ursa major.
chemical weathering of rocks on the continents is one source of elements found in sea water.
