I believe the answer is a
This is a scientific question because you could conduct an experiment to test the theory.
Answer:
Explanation:
The consumer is an individual who pays some amount of money for the thing required to consume goods and services. As such, consumers play a vital role in the economic system of a nation. Without consumer demand, producers would lack one of the key motivations to produce
Answer:
Roundworms can grow up to 3 meters and can be so small they can't be seen with the naked eye. Some roundworms have hooks to cling to certain body parts without being carried away by blood or other fluid. Roundworms are covered in a strong, but flexible, covering
Explanation:
<span>The building from the list provided with the highest likelihood of air pollution is a tightly sealed house with an unvented water heater. The school with leaks will let air exchange happen so that isn't it, and having a carbon monoxide detector only reports existing air pollution it doesn't prevent air pollution, it could have issues but we don't know. The tightly sealed house with the unvented water heater is a near sure thing.</span>
