Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

Which one of the following activities would cause a reduction in the number of animals in a river?

Which one of the following activities would cause a reduction in the number of animals in a river?
A. Washing vehicles in the river.
B. Dumping human waste into the river.
C. Wild animals watering in the river.
D. Cutting trees from the river bank.

Answers

The correct answer is (A) Washing vehicles in the river.
When we wash vehicles in the river, the vehicle oil will drain to the river causing respiration problems to the animals.

sharon kalunda answered the question on July 29, 2019 at 06:42

Answer Attachments

Next: Use of cover crops for conservation of soil will work in the same way as

Previous: The diagram below shows a simple machine with positions labelled E, F, G and H. For the machine to make work easier the effort should be...

View more KCPE Science Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

Use of cover crops for conservation of soil will work in the same way as (Solved)

Use of cover crops for conservation of soil will work in the same way as
A. planting of trees.
B. mulching.
C. terracing.
D. contour farming.

Date posted: July 29, 2019 . Answers (1)
A component of air used for germination is also required for (Solved)

A component of air used for germination is also required for
A. burning substances.
B. preserving soft drinks.
C. making proteins.
D. making electric bulbs.

Date posted: July 29, 2019 . Answers (1)
In an experiment on mixing of liquids, water, cooking oil, fresh milk and kerosene were mixed two at a time. Cooking oil mixed well with (Solved)

In an experiment on mixing of liquids, water, cooking oil, fresh milk and kerosene were mixed two at a time. Cooking oil mixed well with
A. water and fresh milk.
B. water only.
C. fresh milk and kerosene.
D. kerosene only.

Date posted: July 29, 2019 . Answers (1)
The form of energy that comes second during energy transformation in a torch dry cells is (Solved)

The form of energy that comes second during energy transformation in a torch dry cells is
A. Light.
B. electrical.
C. chemical.
D. heat.

Date posted: July 29, 2019 . Answers (1)