Answer:
sweat glands
Explanation:
This is because sweat regulates body temperature. When you are hot, you sweat and the sweat cools you down.
If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that seems to come from behind the surface (B). In theory, the sound waves hit the smooth surface and bounce off the surface. The sound also repeats itself. This is known as an echo. There needs to be a time gap between the sound and the echo otherwise the listener will not hear the echo. It will still be present but form part of the original sound.
The waste comes in many different forms and types and can be categorized in variety of ways. Generally it could be liquid or solid. And there is the hazardous type of waste that is harmful to the health and environment. Organic waste comes form animals and plants. Recyclable waste is the waste that can be recycled into new useful products. Green waste can be discharged in the us water.