<span>sink back into Earth
When temperature differences exist, hot liquids rise and cold liquids sink. This creates convection currents. Convection currents transfer heat through the fluidity of water, air, or even hot magma. Convection currents develop when heated fluids expand. These fluids become less dense. The decrease in density causes the fluid to rise away from the original heat source. As the fluid rises, colder fluid is pulled toward the heat source and replaces the warm fluid. This fluid is then heated. It rises, and the process begins again. Convection currents establish a circular current that only ceases once the heat is evenly transferred throughout the fluid.</span>
Answer:
Life expectancy is so low in Africa due to it's terrible poverty. It is also low due to the rapid spread of AIDS.
Explanation:
G o o g l e
A, They worried that Lincoln would try to end slavery in the United States.
Answer:
The Olmecs lived in hot, humid lowlands along the coast of the Gulf of Mexico in what is now southern Veracruz and Tabasco states in southern Mexico.
Explanation:
I believe you were given an article of some sort or something in order for you to complete this question. Please do look into the text and see if my answer is correct or not since I only searched it up and did a short research on it.
Answer:
Probably the fourth answer because the witness knows everything. The suspect in trial could've lied to police and could've stolen evidence.