The two main properties of sound are frequency and amplitude. The frequency of the sound waves determines the pitch of the sound. The amplitude of sound determines the loudness. The quality of sound is affected by the pitch and the loudness.
Answer:
D. Power is required in order for work to be applied on an object
Answer:
Option (C).
Explanation:
Camouflage may be defined as the change in the coloration and illumination that are generally used by the animals to conceal themselves from their predator. Camouflage can be done according to the environment or their prey.
Snowshoe horse color changes as described in the question. The mutation in the hares that causes change in color according to the temperatures will be more reproductive advantage in their environment rather change in the day length.
Thus, the correct answer is option (C).
No abiotic things are non-living, and cells are living.
Answer:
#1 false its difficult but also possible. #2 true and #3 False. the Salivary gland in the mouth make 1.5 liters a day
