Explanation

Rocket works on the principle of conservation of linear momentum.

conservation of linear momentum and third law of motion

The hot gases acquire momentum in the backward direction

& the rocket acquires an equal amount of momentum in the forward direction.

Explanation

A vector quantity is a physical quantity that has both magnitude and direction. 

Acceleration, electric field, and velocity are vector quantity because It has both magnitude and direction.

Additional information:

a scalar quantity only has magnitude.

Mass, temperature, and kinetic energy, volume,  are scalar quantities because they all contain only magnitude

Explanation

• The stratosphere prevents UV rays from surface of the Earth
  
• 90% of the ozone in the atmosphere is occupied by the Stratosphere.
• Ozone molecules are constantly formed and destroyed in the stratosphere

Additional Information

Ozone is a molecule that contains three oxygen atoms

The atmosphere can be divided into five layers:

1. Troposphere (all weather occurs within this layer)
2. Stratosphere (ozone layer absorbs UV rays)
3. Mesosphere (coldest layer of the atmosphere)
4. Thermosphere (radiowaves transmitted from the Earth and reflected by this layer)
5. Exosphere (molecules and atoms escape)

Explanation

Explanation

All matter consists of atoms,

which, in turn, consist of protons, neutrons and electrons.

Explanation

Chlorofluorocarbon gas is the most harmful to the ozone layer.

The stratospheric ozone layer is Earth's “sunscreen”  protecting living things from too much ultraviolet radiation from the sun.

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

Explanation

• The largest component of natural gas is methane
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• Natural Gas is also known as Methane.
• The principal use of methane is as a fuel.
• Natural gas also contains smaller amounts of natural gas liquids (NGLs, which are also hydrocarbon gas liquids)
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• Largest natural gas producer country in the world Russia
•  Russia is home to the world's largest natural gas reserves, with a total proved resource of 38 TCM

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Explanation

The ozone hole happens when the protective ozone layer in the stratosphere above the South Pole begins to thin every September.

All Important Questions Related to "OZONE"

The stratospheric ozone layer is Earth's “sunscreen”  protecting living things from too much ultraviolet radiation from the sun.

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

ND17-7-2023

Explanation

Sound travels 4.3 times faster in water than in air.

In water, the particles are much closer together and they can quickly transmit vibration energy and the sound wave travels over four times faster than it would in air.

Explanation

The Sun is the star at the centre of the Solar System.