9. A student studies that the hair in a sheep helps it to survive the cold. Which of these explains how the hair keeps the animal warm? *
(a) They trap a lot of air which is a poor conductor of heat
(b) They trap dust particles which is a good conductor of heat
(c) They trap a lot of bacteria which is a poor conductor of heat
(d)They trap water molecules which is a good conductor of heat
Answers
Answer:
(a) THEY TRAP A LOT OF AIR WHICH IS A POOR CONDUCTOR OF HEAT
Some animals, including yaks and sheep, benefit from these hairs in order to keep their body hot. These creatures' hairs hold a lot of air inside of them. Since air is a poor conductor of heat, it stops heat from leaving their bodies and dissipating into the cold environment.
Explanation:
Animals have densely haired exteriors. As a result, they stay warm. Thick hairs may do this because they hold a lot of air inside of them. Since air is a poor conductor of heat, it stops their bodies from losing heat. Woolen clothing is lightweight, with little air space between the layers. We feel warm thanks to the air spaces between the fabric. Because of the air spaces in the fibres, wool is a poor conductor of heat and keeps outside air from moving into our bodies. We are able to stay warm since there is less air circulation through the woollen cloth.
Mammals' bodies are covered in hair, which enables them to regulate their body temperature under difficult circumstances. These hair function as an insulator, or a poor conductor of latent heat. Therefore, it aids individuals in maintaining body heat in harsh settings.
Animals keep surplus food that has been digested in the form of adipose tissue, which includes lipid-containing components. Adipose doesn't really conduct heat as well as other tissue and substances, such as muscle or skin, due to its relatively low heat capacity. In this manner, it assists in insulating an animal carcass.
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