Answer:
Wind energy
An ideal source of energy needs to be reliable, cost effective, safe and must lead to almost zero adverse environmental impact.
Wind energy is energy obtained from air moving at high velocity. This energy is harvested using windmills which convert mechanical energy to electrical energy.
Wind is inexpensive because it occurs naturally. However, a large expanse of land is required in order to mount sufficient number of windmills that will generate enough electrical energy for practical purposes.
This method of electricity generation is safe and does not lead to any environmental hazard unlike the burning of fossil fuels, use of nuclear energy or loss of habitat due to hydroelectric power generation.
Explanation:
A pan on the stove getting hot, because the pan is conducting the heat from the stove.
The sun with its dominant mass exerts the greatest gravitational force in the solar system and holds all other objects in orbit and governs their motion
Hydrogen bonding is an attractive force between a hydrogen atom attached to a electronegative element