Q. Consider the following statements about Oil spills:
1. Oil spills decreases the level of dissolved oxygen in water killing marine organisms.
2. Oil spills can be controlled by chemical dispersion and combustion.
Which of the above given statements is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: C
Notes:

Explanation: Oil Spills are very difficult to control as oil tends to spread very fast affecting a large area over shorter time. Their impact is detrimental to the subjected environment (land, water, air). Oil films retard the dissolved oxygen, decreases light penetration.

Source: https://response.restoration.noaa.gov/about/media/how-do-oil-spills-out-sea-typically-get-cleaned.html