Answer:
Using a control group means that any change in the dependent variable can be attributed to the independent variable.
Explanation:
Answer:
answer
Explanation:
ettlement patterns are the ways in which human settlements are distributed across the earth’s land, including the locations of cities, towns and even individual homes. Where people settle is determined by a wide range of factors related to both nature and human society. Examining the reasons behind different settlement patterns is an important part of understanding the geography of the world we live in.
Changes in the orbit of the earth caused the ice sheets to spread across Canada.
Answer:
What evidence suggests that life might have been possible on Mars in the distant past?
Although the surface of Mars is inhospitable today, there is clear evidence that in the distant past, the Martian climate allowed liquid water – an essential ingredient for life as we know it – to pool at the surface.
Explanation:
