Answer:
I believe the correct answer is 4 Polar Ice Sheets
Explanation:
Most of earths water comes form melting Polar Ice Sheets.
Answer:
d. human environment interaction.
Explanation:
Early settlers to California were looking for gold is an example of human environment interaction because people settles in an environment where resources are present in sufficient amount. People comes to settle in California because gold is present in large amount and we know that gold is very valuable material that is very important for the improvement of economy of a country as well as its people.
The correct answer is C. Direct democracy.
In it, the people directly vote vote on policy initiatives, unlike nowadays where representative democracy dominates.
Answer: D. Samples of ocean water tested off the coast of South America contained the same salt content as oceans near Africa.
Explanation: