SCIENCE 5 SSC EVALUATION 2023

Which of the following describes the importance of estuaries?

• they filter the salt from the sea

• they filter sedimants and pollutants

• they serve as breeding ground for different species

• all of the above

Which of these may lead to destruction and imbalance of ecosystem?

• animal conservation

• overfishing and overhunting

• reforestation

• waste segregation

3. Why Improperly disposed harmful household can harmful our water supply?

• a. the water will be contaminated

• b. the water will be a good source for drinking

• c. the water will be good to the migratory birds and species

• d. provides organisms a new way to regenerate and reproduce

4.Why is estuary a home of vital marine life?

• A. provides only food to the marine animals

• B. provides only shelter for marine animals

• C. provides various habitat for wildlife and aquatic life

• D. provides organisms a new way to refresh

5.  How disposal of solid and liquid waste in rivers and streams affect the estuary?

• A. permanent loss of marine life

• B. pollution can damage the marine life

• C. upset the natural balance of marine life

• D. All of the above