TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: An air mass is defined as a large, more or less uniform body of air with nearly the same temperature and moisture conditions.

SOLUTION: One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.

PROBLEM: The elimination is driven by competition between neurons, which in turn is governed by the activity or use of neural circuits.

SOLUTION: Half of the neurons formed in the embryo are eliminated because of competition

PROBLEM: Ocean acidification is a lowered pH of ocean waters caused by increased carbon dioxide emissions into the atmosphere, which results in more CO2 dissolving into the ocean.

SOLUTION:
Ocean acidification occurs when excess carbon dioxide in the atmosphere causes the oceans to become acidic.