Animals ingest food containing carbon sources such as carbohydrates, proteins and lipids. (Which they get from plants that have absorbed and converted the carbon dioxide into other energies). They then metabolise these substances to produce waste products. One of these waste products is carbon dioxide which they breathe into the atmosphere. Also animals faeces is broken down by bacteria which give off carbon dioxide as they do so.
Its a cinder cone cause after it all falls down to make deposits.
The length of an arc rounded to the nearest hundredth is 4.75units
<h3>How to calculate the length of an arc?</h3>
The formula for calculating the length of an arc is expressed as:
L = rtheta
where
r is the radius = AB = 4 units
theta is the central angle = <ABC = 68 degrees
Substitute
L = 4(68π/180)
L = 4.75units
Hence the length of an arc rounded to the nearest hundredth is 4.75units
Learn more on length of an arc here: brainly.com/question/2005046
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