Answer:
The atomic number or proton number of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus.
Explanation:
The Chesapeake bay is an estuary in United States. The presence of nitrogen and phosphorus in the estuary can cause harm to the aquatic species present there.
The main source of nitrogen in the Chesapeake bay is the agricultural runoff. The pesticides and the herbicides used in the agriculture may come along the runoff and get mixed with large rivers and water bodies. The nitrogen from agricultural runoff accounts approximately 40% of the total sources of nitrogen.
Hence, the correct answer is agricultural runoff.
recycling and using alternative power
The final state is a gas, because the substance can fill the container.
The atoms in a gas have the most noteworthy vitality of the three states and the particles are sufficiently far from one another to allow that they move uninhibitedly and fill the compartment.
The initial state is solid, because the particles cannot slide past one another.
The particles in a strong are firmly pressed and can vibrate however not translate, while in fluid express the particles are close but can move all the more openly and can slide past each other.
So, the change described is from solid to gas.
