Answer:
climate change threatens coastal areas which are already stressed by human activity pollution invasive species and storms sea level rise could be rolled and in coastal ecosystems and eliminate Wetlands warmer and more acidic oceans are likely to disrupt Coastal and marine ecosystems
B the north European plain provides navigable rivers
Answer:
A. Provided them with much of their food
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)
Answer:
It radically altered the geography of North America north of the Ohio River. At the height of the Wisconsin Episode glaciation, ice covered most of Canada, the Upper Midwest, and New England, as well as parts of Montana and Washington.
Explanation:
