Answer:
Mutations, gene flow, and sexual reproduction are all major causes of variation. By altering the genes of individuals in a population, DNA mutation causes genetic variation. As new individuals with different gene combinations migrate into a population, they cause genetic variation.
Explanation:
B)
The farthest distance can about 401 million km.
I think the correct answer is weathering. It is this process where rocks are break into tiny fragments by air, water and ice. It breaks down or loosens surface so they are transported away. Hope this answers the question. Have a nice day.
They form only above snowlines at higher altitudes where so cold and dry snow doesn't melt and accumulates.
Answer:
Global warming (Anthropogenic hazard)
Explanation:
Global warming is said to be a long term rise in the annual temperature of the earth. There a number of scientists that have have give statements that the global warming as summarized by IPCC which is endorsed by other scientific bodies, including many climatologists, anthro geographers and other oceanographic experts which have recorded temperature changes over the period of decades and have seen the reaction with various elements like the greenhouse gases on the environment which will risen <u>from 1.5 to 5.8 degrees since 1950 to 2100</u> and rise in annual surface temperature to 3 degrees. Nearly 98% of evidence proves the existence of human impact upon the earth's environment and now the world is moving towards a global cooldown.