Question

An energy pyramid illustrates a great loss of energy at each level of a food web. Each level of the pyramid has only 10% of the energy at the level below it. If the producer level has 10,000 calories for the food we, how much energy is available of each of the next three levels?

In your opinion, how do you think problems like pollution and deforestation are linked with population growth?

How can the growth of a population be slowed by its own numbers?

Answer 1

Producer has 10,000 calories of energy

Next level :10% * 10,000 = 1000 calories

Next level :10% 1000 = 100 calories

Next level :10%* 100 = 10 calories

Where is an increased population growth,that gradually leads to an increase in the demand for more of shelter,food and other resources required for survival.When there is demand for food and shelter ,people cut off the trees so that they can meet their demand for increasing agricultural land to grow food, get more wood for fuel,construction land for shelter and expansion of industrial area etc. All this leads to deforestation and ultimately to an increased carbon dioxide in the environment which leads to green house effect. Also as population grows ,there is an increase in the number of automobiles, industries and this leads to increase in pollutants in air and water.

When the population reaches its carrying capacity, the growth of a population is slowed down by its own numbers.After a population reaches its carrying capacity,it starts to decline.