North America and Europe lie entirely north of the equator. Almost all of Asia, most of Africa, and a part of South America are above the equator. Not sure if South America counts as 'mostly' though. That's up to you.
Answer: D
Explanation: The consumption of fish especially the small fish e.g shellfish is by far the most significant source of ingestion-related mercury exposure in humans and animals.
Answer:
This is called wind shear, and it can induce a spinning movement in the air. At first this creates a spinning cylinder of air that is parallel to the surface. But as with any thunderstorm, the convective cells in a hurricane create strong updrafts. These can tilt the spinning air upright; a tornado is born.
Answer:
Afferent arterioles are a group of blood vessels that supply blood to glomerulus in nephron while afferent arteriole brings back blood from glomerolus.