Explanation

Venus orbits the Sun anti-clockwise but spins clockwise on its axis.

This unique rotation is known as retrograde rotation.

Explanation

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

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 is depleting: Air pollution

ND17-7-2023

Explanation

When outside temperatures are low and there is moisture in the air, small ice crystals are formed.

On their own they are tiny, but when they collide they stick to each other and make snowflakes.

When lots of these particles join together they get heavier and once they are heavy enough they fall to the ground as snow.

Explanation

The vertical movement of air is called air current.

Temperature differences can cause air currents because warmer air is less dense than cooler air, causing the warmer air to appear 'lighter'.

Air currents can be caused by differences in temperature, pressure, or impurity concentration.

Explanation

Cells are the basic building blocks of all plants and animals.

It forming the fundamental structure and function of living organisms.

Explanation

An isobar is an imaginary line that connects places of equal barometric pressure.

They can be used to find areas of low or high pressure over a large area.

Explanation

An EEG (Electroencephalogram) is a test that measures electrical activity in the brain.

It helps detect abnormalities such as seizures, sleep disorders, and other neurological issues.

Explanation

• Bats can also fly in the dark because they are capable of taking the help of   Ultrasonic Waves 
• ***
• concept:
• They are guided by ultrasonic waves produced by them.
• Bats are guided by ultrasonic waves which they produce and enable them to fly in the dark
  
  

Explanation

Lead is commonly used as a shield against gamma rays.

Due to its high density.

It effectively absorbs and blocks gamma radiation.

Explanation

Hypertension (high blood pressure) is a non-viral disease.

Whereas HIV/Aids, Measles, and Influenza are all viral diseases.