Unit 3- Objective 3

Question 1

List a benefit and limitation with Green Roofs

Answer 1

Benefit- Better drainage system: Plants can store water and substrate before being released naturally back into the environment.
Limitation- A higher cost then tradition roofs

Question 2

List a benefit and limitation with water waste treatment plans

Answer 2

Benefit- Provides clean, safe water processed.

Limitation- Smelly, bacteria, space, cost

Question 3

List a benefit and limitation with windmills

Answer 3

Benefit- Renewable & clean source of energy, Low operating costs
Limitations- Noise, its remote

Question 4

List a benefit and limitation with Hydroelectric power

Answer 4

Benifits- Renewable, low emissions, safe

Limitations- expensive

Question 5

List a benefit and limitation with hydrogen fuel cells