The complete question is attached below:
Answer: Option C
Explanation:
The land that is available for the growth of the producers is reduced. If the first level of the food chain is affected then the other levels of the food chain will also be affected.
Then primary consumers will be less due to less producers. The secondary consumers will also be reduced.
The different levels above these levels will also be affected due to the less availability of food from the lower tropic level.
So, the all the levels will be affected if the prairie land will be reduced.
When a ball is at a particular height it possess potential energy which is given as,
The potential energy is converted into kinetic energy of the ball. According to conservation of energy,
which can be further given as,
Substitute the known values,
Thus, the kinetic energy of the ball is 0.140 J.