Question

5. Animals that live under the soil do not need
oxygen for survival.
6. Dust and smoke present in air cause
respiratory problems.
7. Windmills are used to generate electricity.​

Answer 1

Answer:

The above pic is the ans of your 5thQ :)

6th ans): Currently it cannot be confirmed that dust exposure causes asthama to develop,however breathing in high concentrations of dust over many years is thought to reduce lung function in the long term and contribute to disorder like chronic bronchitis and heart and lung disorders.

7th ans):Wind turbines work in a simple principle instead of using electricity to make wind like a fan wind turns the propeller like blades of a turbine around a rotor which spins a generator which creates electricity.

Hope it helps uh :)