300 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.

Questions:

a. Briefly discuss the importance of dissolved oxygen in surface waters.

b. Water is a natural resource renewed naturally by the hydrological (water) cycle. Explain this with the aid of a diagram.

c. Define the following

i. Biodegradable pollutants
ii. Non-biodegradable pollutants
iii. Water pollution.

CLICK THE LINK TO DOWNLOAD THE DETAILED ANSWER

Copyright warnings! Do not copy.