The blinds have pulleys. To pull them up and down.
Clearcutting has several negative impacts on both human and environment.
Many studies showed that clearcutting method will cause nearly three times the amount of erosion due to higher risk of landslides.
This will potentially very dangerous for human and the environment around Canada
hope this helps
Beds of marble metamorphic rock
Disrupt means, to interrupt by causing a disturbance or problem.