instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: Tasha is studying birth rates in various countries. She looks at two countries. In South Africa, the food supply is currently higher than in Australia. Because of this, the birth rate in South Africa, compared to Australia, will be
Answer: higher
answer:
Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

question:
Question: To get the fastest reaction, raise the temperature of the reactants
Answer: higher or
answer:
When the temperature of reactants is higher, the rate of the reaction is faster.

question:
Question: If Mary is running and race and begins to breathe hard, what happens to the air pressure in her lungs as she constricts her chest?
Answer: increases
answer:
Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs.