Answer:
See below
Explanation:
The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface. Since this energy warms the earth's surface and atmosphere, some of it is or becomes heat energy. There are three ways heat is transferred into and through the atmosphere:
<u>radiation: </u>Radiation is the transfer of heat energy through space by electromagnetic radiation. If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation.
<u>conduction:</u> Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time, the handle of the spoon will become hot.
<u>convection: </u>convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid.
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Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density. Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water.
Answer:
explained
Explanation:
The skin cells divide every day, as the epithelial layer is the outer protective layer, it needs to be replaced from time to time, which helps in healing wear and tear. Our skin cells divide once in each day.
In contrast, the nerve cells do not divide at all. That is their frequency of cell division is zero. They cannot divide because they lack centriole in them.
Answer:
The correct option is<em> C) Decrease with time.</em>
Explanation:
Alcohol has a short life span in an individual's body. Mostly,alcohol is removed by the liver in the body. But the human liver can excrete a limited quantity of alcohol in every hour. The rest of the alcohol stays in the blood.
When blood is left unrefrigerated, the alcohol was metabolized by the blood. The hemoglobin got converted into oxy- hemoglobin ad metabolized the alcohol.
If the blood was refrigerated, then hemoglobin would not have been active to perform this function.
Answer: Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioral, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science.