Question

Match the following

1. Eutrophication	I. Rise in sea level
2. Biomagnification	II. Water hyacinth
3.Terror of Bengal	III. Increase of quantity of pollutant at successive trophic levels
4. Green house effect	IV. Enrichment with nutrients

• A. 1- IV, 2- III, 3- I, 4- II
• B. 1- I, 2- II, 3- III, 4- IV
• C. 1- II, 2- III, 3- IV, 4- I
• D. 1- IV, 2- III, 3- II, 4- I

Answer 1

The correct option is D 1- IV, 2- III, 3- II, 4- I

Eutrophification is the process of adding nutrition to the ecosystem and enriching it with the nutrients mainly like nitrogen and phosphorous. It is natural process in lakes.

Biomagnification is the increasing of the toxic chemical in the successive levels. It is simply accumulation of pollutants in the organisms

Terror of Bengal is a water hyacinth which absorbs dissolved oxygen from water body and leads to the death of fishes which is a staple food of Bengal.

Greenhouse effect increases the earth's temperature by taking the long waves and reflecting the short waves. Due to the increase in earth's temperature, the icebergs in the sea becomes water and increases water level.
Therefore, the correct answer is option D.