sẵn có

điện năng

Machines cannot________ people in this work.

• reuse

• recycle

• replace

• reduce

có thể tái tạo

sản phẩm

Fossil fuels can be used to ___________ electricity.

• generate

• convert

• use

• run

___________ energy is produced from moving air with the help of large turbines.

bóng đèn

tài nguyên

To produce ___________ energy, atoms are split apart, which releases energy.

• solar

• wind

• hydro

• nuclear