Answer:
a-atmosphere
Explanation:
atmosphere is a body of gases located on a planet or other materials
Answer:
A biotic factor is a living thing that has an impact on another population of living things or on the environment. Abiotic factors do the same thing, but they are non-living. Together, biotic and abiotic factors make up an ecosystem. To survive, biotic factors need abiotic factors. Hope it helps you .
Explanation:
Answer:
Heterotrophic Autotrophic
The frequency of the waves must decrease when the musician increases the wavelength without changing their speed. Your welcome