Pruning is the process by which: select one:
a. brain centers are rewired following localized brain damage.
b. the left hemisphere specializes for language processing.
c. the frontal lobe disengages from the prefrontal cortex.
d. unused connections between neurons are eliminated. \

d.

Explanation:

Pruning is the process by which unused connections between neurons are eliminated. This has been studied and scientists believe this process takes place in order to get rid of any damaged or degraded neurons, allowing specific areas of the brain to improve their networking ability. Which is why it is a big area of study in regards to child development.

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answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.