The surface of the earth is not level although weathering and erosion have been occurring for millions of years which is the best explanation of this observation

A. The sea level keeps changing.
B. Movements in the earth's surface continue to occur.
C. There has not been enough time.
D. Wind and water erosion are not strong enough.
E. Glacier movement is required to smooth the earth's surface.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?