Respuesta :
Answer:
As a seed plant grows, the roots grow downward due to the force of Gravity
Explanation:
A seed is planted upside-down, but the roots still grow in the direction of gravity.
Answer:
Obviously, it's gravity
Explanation:
- Because when saying moving downward, it means an object is moving down, and that is caused by gravity.
- If there is no gravity then it is called 0 gravity, meaning free from the ground.