B Quartz. Will be your answer of thia
A, yes because the plane is using air resistance and acceleration is increasing while it goes up. Although you don’t know speed, still yes.
Answer:
<em>C</em>
Explanation:
<em>Tennis would belong to net wall games .</em>
Answer:Mechanical ventilation system
Explanation:
Ventilation can be increased to safe levels by using mechanical ventilation system to bring in more fresh air.
There are many ways to provide ventilation for example
- providing ventilation fans in kitchens and bathrooms to remove allergens,moisture.
- A duct should be provided such that it provides fresh air to different rooms and provision should also be made to remove the poor air inside home.
