Explanation

A mature tree absorbs carbon dioxide at a rate of 48 pounds per year.

In one year, an acre of forest can absorb twice the CO2 pgroduced by the average car's annual mileage.

Explanation

Thermal energy  is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. 

Explanation

Gases can dissolve in water. The dissolving of a gas in water depends on the interaction between the molecules of the gas and the water molecules.

Oxygen, Carbon dioxide, and Nitrogen are mostly soluble gases in water.

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Explanation

• Nitrogen (N2) makes up approximately 78% of the Earth's atmosphere.
• Making it the gas present in air with the highest percentage.

Explanation

Reactors use uranium for nuclear fuel.

The uranium is processed into small ceramic pellets and stacked together into sealed metal tubes called fuel rods.

Explanation

Because they're reluctant to share electrons from their filled outer electron shells, noble gases are generally considered unreactive

Explanation

Schonbein (1840) concluded that Van Marums observations in 1785 of a peculiar smell,

when an electric discharge was passed through oxygen (or air), was in fact a new gas.

He named it Ozone,

which is derived from a Greek word ozoaterr meaning smell.

Soret in 1860, assigned the molecular formula O3.

Explanation

Nitrogen gas is used in chips packets because it controls the Oxygen reactivity

Explanation

Given numbers. of molecules are, 3.01 *10^22 so

using the formula:

no. of mole = given no. of molecule /avagadro no.

so, here

no of mole. = 3.01*10´22/ 6.022*10´23

0.04998339422 mole.

Explanation

CNG as compared to other fuels, causes less pollution.

The reason is that it is made up of methane.

There is less carbon emission.