Section A: MCO (10 Marks) 1. Which of the following does not explain why the windows of the science laboratory should be
opened?
A. To let fresh air into the laboratory.
B. To prevent the laboratory from becoming too hot when all the Bunsen burners are on
C. To prevent accumulation of irritating fumes and gases.
D. To allow teachers to check on misbehaving pupils.​

Which of these resources is used worldwide to make construction products, pottery, and porcelain

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase