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:
B. Low; very little
Explanation:
Metals such as iron, lead, copper and zinc have low specific heats. This means that it takes very little energy to change their temperature.
Specific heat is the heat required to raise the temperature of 1g of substance by 1°C.
Metals have good thermal conductivity and generally have low specific heat. This implies that their temperature can easily be raised when heated.
Some substances like water have very high specific heat. This suggests that they require more heat to raise their temperature.
Learn more:
Specific heat brainly.com/question/7210400
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C) Stars get born, get older, then eventually die.
