Answer:
It gives our light which we need for probably everything.
Explanation:
Freeze wedging<span> is caused by the repeated freeze-thaw. </span>Frost wedging<span> occurs as the result of 9 % expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes. cycle.</span>
Answer:
A. External
Explanation:
External stimulus includes touch/pain, vision, smell, taste, and sound.
The internal pressure increases as the gas is heated
The answer to this is A. this is because, refraction with a light or sound wave changing its direction involve propagation,(in which propagation is the change in direction of a light or sound wave)