Answer:
Pollution Sources & Land Use. Imperviousness & Water Quality ... protect streams, rivers, and ground water, land use practices can be implemented ... In built-up areas with pavement and buildings, little rainfall soaks into the soil Ground water flows slowly into streams, usually over a period of months,
Explanation:
Answer:
915 Hz
Explanation:
The observed frequency from a sound source is given as
f₀ = f [(v + v₀)/(v+vₛ)]
where
f₀ = observed frequency of the sound by the observer = ?
f = actual frequency of the sound wave = 983 Hz
v = actual velocity of the sound waves = 343 m/s
vₛ = velocity of the source of the sound waves = 55.9 m/s
v₀ = velocity of the observer = 28.4 m/s
f₀ = 983 [(343+28.4)/(343+55.9)]
f₀ = 915.2 Hz = 915 Hz
The answer is C. An occluded front.
