Answer:
The value is 
Explanation:
From the question we are told that
The electric flux is 
Generally the net charge is mathematically represented as

Here
is the permetivity of free space with value

So

=> 
Around 70-72% of earth’s surface is covered in water (most of it is salt water).
Hope this helps.
Answer:
volume is 700 mL
Explanation:
pressure = 2 atm
volume = 350 mL = 0.350 L
to find out
volume
solution
we will apply here equation that is
P1×V1 = P2×V2 ..............1
here P1 = 2 and V1 = 0.350 and P2 = 1 for standard atmospheric pressure
so put all value here in equation 1 and get V2 volume
2 × 0.350 = 1 × V2
V2 = 0.700 L
V2 = 700 mL
so volume is 700 mL