Question

One way to get more energy out of fuels is to increase ______, the percentage of energy used for work.
(Fill in the blank)

Your choices are...:
1. Recycling
2. Conservation
3. Efficiency
4. Capacity
5. Fans
6. Misters
7. Insulation
8. Fission

Answer 1

Explanation:

One way to get more energy out of fuels is to increase conservation, the percentage of energy used for work.

Answer 2

Answer:

capacity is the answet