Answer: False
Nitrogen and sulfur dioxide are acidic oxides in nature. The burning of fossil fuels and other sources are responsible for addition of these oxides in the atmosphere of earth. These oxides mixed with water vapor causes acid rain. Being acidic in nature they will have low pH value. Therefore, greater the concentration of sulfur and nitrogen oxides, will lower the pH value of precipitation.
Answer:
False
Explanation:
b. encrypts the signal
c. encodes voice sounds into analog signals for transmission
d. encodes voice sounds into digital signals for transmission
Answer:
C
Explanation:
A codec is used for encoding
b. liquid
c. gas
d. solid
Answer: Waves in compressed string
Explanation:
Longitudinal waves are waves in which the vibration of the medium is going parallel to the direction of the waves produced by the medium.
Longitudinal wave can occur in compressed string. A compressed string displaced horizontally will transmit wave in the same horizontal direction. That's why they are longitudinal waves.
Answer:
It is sound waves
(I did USAtestprep)
Explanation:
B) Bone
C) Muscle
D) Tendon