I believe the correct answer from the choices listed above is the third option. It would be gravel that is the most permeable. It is the most porous and the the size of the pores are large enough to allow substances to seep in. Hope this answers the question. Have a nice day.
Answer:
D) Negative Geotropism
Explanation:
The stem growing upright is a typical example of negative geotropism.
Geotropism is the growth of a part of plant towards the pull of gravity.
- Gravity always pulls down on every object.
- When a body grows downward, then it is responding to a positive geotropism.
- When a body begins to grow upward, again gravity, then it is negative geotropism.
In this case, the negative geotropism is exhibited by some plant roots.
Also, some tree branches can also grow downward and this shows positive geotropism
Answer:
There is an attractive force call gravity
Explanation:
The reason the moon's inertia doesn't make it continue in a straight line is due to the attractive force of gravity and the reason the moon and earth's gravity doesn't make them collide with each other is due to the moon's inertia. To understand this phenomenon imagine that you have a ball tied to a rope, you keep the rope with one hand and with the other you push the ball so it can move freely; the ball, like the moon, has velocity, but the ball can not move in a straight line because the rope doesn't allow it, in our hypothetical scenario the rope is like the gravity that traps the ball in an 'endless' circle.
Note: The rope and the ball are a hypothetical case, it helps us imagine the phenomena but the forces involved are different than in the case of the moon.
