We will probably never know who first discovered that the ratio between a circle's circumference and diameter is constant, nor will we ever know who first tried to calculate this ratio. The people who initiated the hunt<span> for pi were the </span>Babylonians<span>and </span>Egyptians<span>, nearly 4000 years ago.</span>
Answer:
Transpiration
Explanation:
transpiration process in animals is also know as perspiration or sweating.
The correct option is (d)They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
Any substance with mass and volume is considered matter because it occupies space. Water is a substance that is created when Hydrogen and Oxygen are combined in a fixed ratio (2 H: O) with a chemical link. The elemental metal silver can be found in nature in its metallic form. Carbon is an element, and carbon dioxide as a compound is created when elements of carbon and oxygen are joined in a specific ratio to form the gas.
They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
Learn more about matter here:
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<span>Yes , it is true... Hopes this helps </span>
