Answer:
Explanation:
Given
Velocity of bat 
Frequency of sound 
velocity of sound 
using Doppler Effect apparent frequency is given by

where
apparent frequency
v=velocity of sound in the given media
velocity of source
velocity of observer
here velocity of source is zero
as source is travelling towards source thus

Soil is the result of chemical or physical weathering of a parent rock .this is so since the soil is just tiny particle of the huge parent rock and hence it affects soil composition<span> .</span> if the parent rock was made of limestone then the soil composition will constitute calcite<span> and </span><span>aragonite mineral elements from the limestone parent rock.</span>