Explanation

• Solar and wind energy are renewable sources of energy, meaning they are sustainable and will not run out.
• Solar energy is generated from the sun's rays.
• Wind energy is generated from the wind.

Last verified on 09-02-2026

Explanation

• Laser light has unique physical properties.
• It is different from ordinary light.
• It travels in a very narrow and focused beam.
• Its waves move in perfect synchronization.
• These properties are called coherence and directionality.

Last verified on 04-05-2026

Explanation

• Radioactive radiations include alpha, beta, and gamma rays.
• They differ in mass, charge, and penetrating power.
• Alpha rays are the least penetrating among them.
• They can be stopped easily by very thin materials.
• Even a sheet of paper can block alpha radiation completely.

Last verified on 04-05-2026

Explanation

• Our Solar System is located in the Orion Arm of the Milky Way galaxy.
• It including the Sun and eight planets.
• It consists of about 100–400 billion stars along with large amounts of gas and cosmic dust.

Additional information:

• The Milky Way is a spiral galaxy with a diameter of about 100,000 light-years.
• The nearest large galaxy to the Milky Way is Andromeda, located about 2.5 million light-years away.

Last verified on 11-03-2026

Explanation

• A Neutron bomb mainly releases intense radiation.
• It is designed to kill living organisms rather than destroy structures.
• Buildings and infrastructure remain mostly undamaged.
• Humans, animals, and plants are severely affected.
• Known as an enhanced radiation weapon (ERW).

Last verified on 02-05-2026