B. The greenhouse effect
C. Solar radiation
D. Air conditioning
Explanation:
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A magnet keeps a cabinet door closed.
The Sun pulls on Earth as Earth moves around the Sun.
The protons in the nucleus of a carbon atom are held together.
An example of the strong force in action is the protons in the nucleus of a carbon atom which are held together.
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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Answer:
It would be D) The protons in the nucleus of a carbon atom are held together.
Explanation:
Strong forces only work in the nuclei