If I remember correctly, I believe the answer is a) An increase in the use of buses and trains decreases the effects of acid precipitation.
The decrease of using buses and trains would decrease the effects of acid precipitation.
Every other option seemed right to me!
~ Good luck!
Answer:
Explanation:
Food chain may be a linear sequence of transfer of energy when one organism is being eaten by another organism in an ecosystem. The transfer of energy are often explained by 10% law which states that energy decreases by 10% because it is being transferred from lower to subsequent higher trophic level. there's a limit to the amount of levels that a organic phenomenon can reach this is often due to the subsequent reasons:
1. a big amount of energy is lost thanks to the very fact that organisms undergoes respiration . This lost energy can't be reverted back. Hence, limits the quantity of energy being transferred to the upper trophic levels.
2. a number of the undigested waste is excreted by the organisms. This waste being the a part of biomass gets lost within the environment, which again limit the quantity of overall energy being transmitted to the upper trophic levels.
3. Not all organisms are consumed by other organisms belonging to the distinct trophic levels. a number of them might not survive or die.
It is important because you need vitamins and minerals from them e.g. Scurvy no vitamin c
