The environmental and economic benefits of hydroelectricity, giving examples from the case studies and

Review the explanation.

Explanation:

Hydropower does not generate CO2 emissions, therefore it is not a factor in the generation of global warming. The initial investment of this type of projects in construction is large but this investment can be recovered in the future, since the system guarantees reliability in the supply of energy. It generates employment as technical and engineering personnel are needed for the operation of each of the equipment that is part of the hydroelectric plant.

As for the defects, is that most hydropower should be located near rivers, therefore to access the construction of this project must cut trees and remove animals from their natural habitat.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

it is a negative acceleration