CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following effects will be observed in a lake situated near a farm that uses excessive fertilizers?

A
Oxygen content in the water will decrease.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Less light will penetrate the water.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
The population of aquatic organisms of the lake will decrease.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
All of these
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D All of these
Streams draining into the lake introduce nutrients such as nitrogen and phosphorus from the farms that use fertilizers. These nutrients encourage the growth of algae and cause algal bloom. The algae will slowly cover the entire lake and will not allow sunlight to penetrate the water. When these algae will die then bacteria decompose the dead algae. During decomposition, bacteria use oxygen thus, reducing the oxygen level in the water. The aquatic organisms of the lake will not be able to survive in the oxygen-deficient water and die.
Thus, the correct answer is option D.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Introduction
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon