The correct answer is option 
.
The is an ion made up of two atoms nitrogen and hydrogen.
The polyatomic ions are those ions, which are formed by the binding of the two or more elements, which has a charge and act as an ion. As all others are formed by a single atom, they are not polyatomic, only is formed by two atoms, hence, it is an polyatomic ion.
Answer:
Streetlights, signs and stop lights use the electrical energy
Explanation:
Yes
A cell spends approximately 90% of it's cycle in interphase
Answer:
A
Explanation:
Starch, an example of a class of carbohydrates known as polysaccharide is produced in the leaves by photosynthesis and transported to the roots of the plant for storage. Micro-organisms in the surrounding soil feed on starch released into the soil from the root
