Eastern boundary currents are associated with the cooling off of the ocean waters. These currents originate from both of the poles, they bring cold, shallow, slow water towards the lower latitudes and cools of the water near the Equator. Once there they are warming up and move in the opposite direction as westward warm currents.
Dark matter makes up about 27% of the universe.
Types of farming include subsistence farming, mixed farming, nomadic herding, commercial plantation, livestock rearing, etc.
<span>A: Crude oil, an important source of energy, is now extracted from beneath the ocean floor.</span>
