Explanation:
By using sound absorbing substances we can reduce the echoes.
as we seen in the cinema hall...lol
Answer:
Secondary succession
Explanation:
When a previously occupied area gets colonized by a new dominant group of species or communities, this is known as secondary succession. In secondary succession, new residents take the place of earlier groups in a habitat that has been affected by an ecological disturbance.
Answer:
A. The wavelength increase
Explanation:
The wavelength should increase if the frequency of a sound increases.
??? (Sorry if this is wrong)
Answer:
more glucose and change to a blacky-purple colour
Explanation:
