Environmental Science - Study Mode

[#376] Which of the following spatial units is the largest in terms of scale?
Correct Answer

(A) River segments

Explanation

Solution: River segments is the largest in terms of scale.

[#377] Natural earthquakes are caused by __________
Correct Answer

(A) Earth's crust

Explanation

Solution: Natural earthquakes are caused by earth's crust.

[#378] Eutrophication results from
Correct Answer

(A) Agricultural and sewage water

Explanation

Solution: Eutrophication most commonly arises from the oversupply of nutrients, most commonly as nitrogen or phosphorus, which leads to overgrowth of plants and algae in aquatic ecosystems. After such organisms die, bacterial degradation of their biomass results in oxygen consumption, thereby creating the state of hypoxia.

[#379] Organisms that feed upon other living organisms as a source of energy and nutrients are called as
Correct Answer

(A) Producers

Explanation

Solution: Organism that must consume other organisms to obtain food for energy.

[#380] Nuclear accidents mostly release radioactive __________ into the atmosphere
Correct Answer

(B) Iodine

Explanation

Solution: Nuclear accidents mostly release radioactive iodine into the atmosphere.