Which of the following statements about weathering is true?
a.
Physical and chemical are the two types of weathering.
b.
Weathering occurs when rocks are subjected to the movement of wind or water.
c.
Humans are the only cause of weathering.
d.
Movement is required for weathering to take place.

Please select the best answer from the choices provided

A
B
C
D

Which statement describes the reaction for cellular respiration? the equation is carbon dioxide + water → glucose + oxygen + water and energy is required in the form of light the equation is glucose + oxygen → carbon dioxide + water and energy is produced in the form of atp. the equation is carbon dioxide + water → glucose + oxygen + water and energy is produced in the form of atp. the equation is glucose + exygen carbon dioxide + water and energy is required in the form of light.

Give the biological term for: structures that display characteristics of living organisms only within living cells

What is thought to have caused the mass extinction at the end of the cretaceous period?