Explanation

A nebula is a giant cloud of dust and gas in space.

Some nebulae come from the gas and dust thrown out by the explosion of a dying star, such as a supernova.

Explanation

The ozone layer protects living things from too much ultraviolet  from entering the atomsphere.

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

Chlorine atoms in Chlorofluorocarbons (CFCs) are primarily responsible for the depletion of the ozone layer. 

Explanation

Sunlight is white but appears yellow due to light scattering in the Earth's atmosphere.

Explanation

The term "cosmic" pertains to the universe, space, and celestial phenomena.

Explanation

 Rainbows occur when sunlight is refracted, reflected, and dispersed in water droplets, creating a spectrum of colors.

When light meets a water droplet,

It is refracted at the boundary of air and water, and enters the droplet

Where the light is dispersed into the seven colors

Explanation

Global warming began to accelerate with the advent of the Industrial Revolution, due to increased greenhouse gas emissions.

Since the start of the Industrial Revolution, in about 1750,

Human activities  have increased greenhouse gas concentrations in our atmosphere. such as :

• burning fossil fuels
• including coal and oil
  

Explanation

Air is a mix of gases, with nitrogen (78%) and oxygen (21%) being the main components.

The plus trace amounts of other gases like argon, carbon dioxide, and water vapor.

Explanation

Destructive waves, known as tsunamis

Caused by underwater earthquakes.

When an earthquake occurs beneath the ocean floor,

it can displace a large volume of water

Generating powerful waves that can travel across the ocean

And cause devastation when they reach coastal areas

Explanation

Waves typically don't "strike" during clear weather

They are a continuous natural phenomenon that occurs regardless of weather conditions.

However, they might be more noticeable during clear weather for several reasons:

• Visibility
• Calm Seas
• Recreational Activities
• Safety Concerns