Q8 of 50 Page 477

Write true or false for the following statements:

Harmful chemicals enter into our body through biological magnification.

True

Chemical substances from crop fields and industries are released into the environment, make their way toward food chains and food webs. This is biological magnification. It doesn’t affect directly but exposure to these harmful chemicals may cause some long-term side effects.


More from this chapter

All 50 →
4

Write true or false for the following statements:

15% can be taken as the average value for the amount of organic matter that is present at each step and reaches the next level of consumers.

 5

Write true or false for the following statements:

The green plants capture about 10% of the energy of sunlight that falls on their leaves and convert it into food energy.

 6

Write true or false for the following statements:

In any food chain, an average of 10% of the food eaten in turned into the body mass of an organism and made available for the next level of consumers.

 7

Write true or false for the following statements:

There are generally a greater number of individuals at the lower trophic levels of an ecosystem.