Put the elements in order from the highest electronegativity at the top of your list, to the lowest at the bottom. fluorine (f), oxygen (o), carbon (c), boron (b), sodium (na), nitrogen(n)

Air pollution is the main cause of rise in temperature over the past century.

Explanation:

Due to increase in the industrialization in different countries of the world and also burning of more fossil fuels in the engines of vehicles and jets are the main reason of increasing global temperature. Both industries and vehicles produce high amount of carbondioxide which is a greenhouse gas that blocks the passage of reflected radiation from the earth surface and traps this radiation which increases the temperature of the earth.