Answer:
b. They have protons that are identical to the protons of all
Explanation:
An element is made up of the same atoms. Atoms are the building blocks of the matter and made up of sub-atomic particles, e.g. proton, neutron, and electrons. Protons are found in the nucleus of the atom having a positive charge. All protons are identical because all give a positive charge in all elements. They are different in numbers in each element that depend upon the atomic number. So A option is incorrect but all elements cannot have the same number of protons. Likewise, the size of the atom is also based on the number of protons and neutrons in an atom which varies according to the atomic number. Lastly, the number of protons doesn't need to be the same as protons (check the concept of isotopes for more details).
Therefore, only B option is correct.
Answer:
Alcohol Damages the Developing Brain
Explanation:
Alcohol adversely affects a teenager's brain more than an adult brain because the adolescent brain is still developing. Alcohol can damage every brain, but for teenagers, the damage is more severe and can occur with smaller amounts of alcohol than with adults.
Answer:
Describe the factors that influence the level of cardiorespiratory fitness a person is able to achieve?
Explanation:
The factors that influence cardiorespiratory fitness are age, gender, genetics, body composition, and a person's level of conditioning. Aerobic exercise forces the body to provide extra oxygen to the muscles.
The answer to this is Plan a steady progression of exercise intensity.
