Answer:
The correct answer is option d.
Explanation:
Chemical cycling illustrates the systems of concurrent circulation of elements between other states, compounds, and substances, and then return to their original state, which takes place in space, and on many objects in space comprising the Earth.
Chemical cycling of the nutrients (inorganic) is needed to maintain the conservation of nutrients on Earth. The chemical cycling of nutrients in a natural system requires a pool for the elements, the activities done by human beings, the biotic community and its food chains, and an exchange pool from which producers extract their nutrients. All the mentioned factors are associated with affecting a chemical cycling in exception to the input of geothermal energy.
I think it’s C because if you’re allergic to one cillian than you’re allergic to all of them
Sorry if this is wrong
<span>B) The speed is constant and velocity is changing. </span>
A carbon atom has four electrons in it’s balance shell. as the maximum number of electrons that can be within the second shell of electrons is eight, it is able to bond with four other atoms in order to have a full shell of electrons.
hope this helps :) (please mark brainliest if right!)