Earthworms like staying under dirt because it shields their delicate bodies from exposure. Earthworms have no defensive shell or strong skin so they stay in dampness. The moist, cool earth keeps the worms hydrated.
Answer:
Explanation:
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. It therefore has an inclination of (or very close to) 90 degrees to the body's equator.
Answer: Pulmonary veins.
Explanation:
Pulmonary vein receives oxygen-rich blood from the lungs into the left atrium where it is pumped into the left ventricle, the aorta and then further distributed to the rest of body.
