Which statement is correct?

the number of electrons of a neutral atom always equals the number of protons. the number of neutrons always equals the number of protons. the number of neutrons always equals the number of electrons. atomic weight is identical to atomic mass.

The correct statement is The number of electrons of a neutral atom is always equals to the number of protons.

Explanation:

An atom contain nucleus in its centre that have positively charged  particle called protons and neural particle neutron. .Electrons are present outside the nucleus in various electron cloud.Electrons are negatively charged.

              The number of electrons are equal to the number of proton.As a result the positive charge of the protons neutralizes the negative charge of the electron that"s why an atom is always neutral.

answer; ///i do believe the answer is (virus);

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.