First, volcanic eruptions produce major quantities of carbon dioxide (CO2), a gas known to contribute to the greenhouse effect. ... The small ash particles decrease the amount of sunlight reaching the surface of the earth and lower average global temperatures.
Answer:
Because sound doesn't move in vacuum (of space)
We know the equation of motion ,
, where s is the displacement, u is the initial velocity, a is the acceleration and t is the time taken.
In this case a brick is dropped from rest from a height of 4.9 m, so displacement, s = 4.9 m
Since the brick is dropped from rest, u = 0 m/s
Acceleration on brick = acceleration due to gravity = 9.81 
Substituting

So the brick will reach ground after 1 second.
Part 1)
here we know that supply took 10 s to reach the ground
so here we will have




Part 2)
Here all the supply covered horizontal distance of 650 m in 10 s interval of time
so here we can say



Answer:
The answer is Wind Blowing.
Explanation: