What do valleys on the surface of a planet or moon suggest about previous land features?

A.

the presence of human life forms

B.

the presence of water

C.

the presence of earthquakes

D.

the constant bombardment of asteroids

Discribe what a structure is in a living thing

Ruben has a new puppy named Paddington and wants to feed him the best possible food. Hedecides on an experiment where he will feed Paddington the very best canned food plus a dietarysupplement of vitamins recommended by a veterinarian.

What three phases of the cell cycle are considered interphase

What does mildew look like under a microscope

A recent forest fire has swept through the forest, killing many of the smaller organisms such as the hare, deer, and rodent populations that are prey for the larger organisms such as bobcats, wolves, and mountain lions.

Marks: 1 the circulatory movement that occurs in a gas or fluid with areas of differing temperatures due to the variation of the density and the action of gravity is called:

there is 30 percent more what in earth's atmosphere today than there was before the start of the industrial revolution

Scientists say that conditions must be "just right" for a hurricane to start up. Which is the first step of "just right" in the development of a hurricane? A) Cool ocean water replaces warmer surface water.

What is another name for a tropical savanna?

What is a substance in plant sources that cannot be digested that is 5 letters