Answer:
B
Explanation:
Input force - the force a man apply on the inclined plain. It is less than the force the man should apply if he would just push the ball up.
Distance = hypotenuse becomes longer, that vertical distance (vertical leg).
D all of the above is the answer
<h3>Earthworms are extremely beneficial in agriculture. They aid in the following ways:</h3>
- They help loosen up and aerate the soil as they burrow deep. This aids in the respiration of the roots of the plants, making them penetrate deeper and grow well
- They are being used presently in vermiculture to produce high-quality manure
- They are also used as baits to catch fish
- They keep interchanging the topsoil with the layer just below, thereby increasing soil fertility.
- The excreta of earthworms is rich in the nitrogenous matter and is required for plant growth
HOPE IT HELPS