Answer:
Upwelling, the rising of water from deeper layers of the ocean, is a wind-induced movement that brings cold and nutrient rich water to the surface.
Explanation:
Marine resurgence is an oceanographic phenomenon that occurs when subsurface waters rise. These waters consist of a large amount of nutrients and have a lower temperature than surface waters, becoming colder. This phenomenon generally occurs in areas where primary production is high, or when there is strong fishing activity in the region.
I believe the correct answer would be behavioral isolation. It is an isolating mechanism where two populations or species cannot mate because of the differences in their courtship and mating behavior. It is also called as ethological isolation.
Answer:
D) Africa is home to less than 15% of the world's population and 68% of people with HIV live in Africa.
Hope it helps!
Explanation:
This has put huge stresses on a range of natural systems, including the atmosphere[3],. The increase in the use of fossil fuels has been even greater than the increase in industrial activity. ... The characteristics of the systems that have led to these changes also make the problems hard to address.
Tropical places are hot because the humidity coming from the moisture of the plants and water are heated by the sun on the top layer of the tropical zone. The climate varies little in rain forest. There are five layers in the tropic trees so it's so thick that barely any light come through. This is also why vines grow up the trees so they can reach the sunlight to get nutrients. Also, the tropics are near the equator and that also causes the heat. The polars are cold because they barely get any sun heat to melt the snow or warm it up. The polars are melting due to certain chemicals and gasses in the atmosphere. also known as global warming. Hope that was helpful!
