Answer:
I think it's more man-made possibly, but it might be both. You might want to see if someone says both, both I guess C maybe.
The maximum time a person could listen to a sound of 87 decibels is: 8 hours
<h3>Meaning of Decibels</h3>
Decibels can be defined as the unit used by scientists to measure sound level.The values of Decibel ranges from a very low value to a very high value and the higher we get the more dangerous it is to our human ear.
In conclusion, The maximum time a person could listen to a sound of 87 decibels is 8 hours
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When restraining a horse for a routine veterinary procedure, it's appropriate for the veterinary assistant to Hold the horse's lead rope.
Holding the horse's lead rope is necessary, when restraining a horse for a routine veterinary procedure by the veterinary assistant.
Always hold the lead rope in the right hand by coiling the excess rope on the hand in the other hand.
Lead the left shoulder of the horse with the assistant's right hand with the excess of rope in the left hand of the assistant to avoid serious injury when the horse decides to bolt.
It becomes important to stable the horse by calming the horse before the routine veterinary procedure.
A leather band should be used in the rope by being tightened behind the legs of the front and by further fastening.
Remember not to harm the back of the horse by excessive fastening.
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Answer:
Phytoplanktons are microscopic creatures that are primary producers of oceans. Phytoplanktons take carbon dioxide from atmosphere to make their food and then they are eaten by some other animals of oceans.
Phytoplanktons are present in huge numbers in oceans and have a great contribution to the carbon cycle because it is responsible for the transfer of carbon dioxide from the atmosphere to the oceans.
Most of the carbon is released through combustion by animals that eat phytoplanktons but some accumulate in the ocean floor because some dead phytoplanktons settles down in the ocean.