The atmosphere is important because it contains ozone layers that absorb ultraviolet radiation UV coming from the sun, by thus it is protecting human beings and most living species from negative ultraviolet radiation and thanks to that many species live on Earth. Besides, that atmosphere keeps Earth warm thanks to greenhouse it produces and lowers the temperature leaps between day and night.
Answer:
A. presidential democracy
32 different combinations of three cars can the Carsons select if all the cars are to be different colors.
B. 32
<u>Explanation:</u>
As it is given there are four available colours of the car. That means we have 4 cars.
. Now choose the first car. The no.of way of choosing the first car is equalled to 8 and imagine the first car Colour is black. Now we have a black car so we have to choose from 6 options apart from black.
Now no.of way of choosing the 2 car = 6 and imagine it is blue. Now we have to choose two colour car, so now we have 4 options to choose from. The no.of choosing the car = 4. Now let's calculate the total arrangement -
. It is the total calculation for three cars.
But we have to know the selection so three cars can also be arranged in 6 ways. So the number of different combinations of three cars can be calculated as 192÷6= 32. This is how the selection is being done.
Answer: ron barber
Explanation:
Former United States Representative
Image result for Ron Barber u.s. representatives state of arizona
Ronald Sylvester Barber is an American politician. He was a member of the United States House of Representatives from 2012 to 2015.