Which of the following are designed to reduce
energy demand?
le
1. variabl
ii. tied rate system
iii. energy efficienct appliances

The answer here would be 3, energy efficient appliances.

Explanation:

Energy efficient players are made to reduce the amount of energy used, which in turn reduce overall energy demand.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.