How large was the object that collided with Earth to form our moon?

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material

Injuries in the environment are a result of