Nitrogen is used in many plant fertilizers. when it rains, the excess fertilizers run off into streams, rivers, and eventually are carried to the ocean. algae in the water feed off of the nitrogen in the fertilizers. the excess nutrients can cause a huge mat of algae to grow, called an algal bloom. when the nitrogen is all used up, the algae die and decomposing bacteria begin to consume them. the bacteria multiply and consume most of the oxygen in the water, causing many of the fish and other larger organisms in the water to suffocate and die. how could the problem of algal blooms be solved?

Develop systems that track and predict harmful algal blooms

Explanation:

In Massachusetts, scientists are experimenting with a sensor that can identify three types of dangerous microscopic algae by their genetic material and offer an early warning when they are detected in the water.

Farmers and gardeners should use other methods to provide crops with the nitrogen they need.

Explanation:

That was the right answer on study island :/

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.