Explanation

Know all about India’s lunar mission Chandrayaan-3

Launched on 14 July 2023

Launched from Sriharikota in Andhra Pradesh

On 23 August 2023, India became the first nation to land a craft near the Moon’s south pole

Chandrayaan means Mooncraft

Chandrayaan is a Sanskrit word

Chandrayaan-3 is the third Indian lunar exploration mission under the Indian Space Research Organisation's (ISRO) Chandrayaan programme.

Chandrayaan-3 consists of a lander named Vikram and a rover named Pragyan

The propulsion module carried the lander and rover configuration to lunar orbit in preparation for a powered descent by the lander.

Explanation

Ultra Violet rays: most harmful and are almost completely absorbed by our atmosphere.

Explanation

Scientists know that the core is metal because:

The density of Earth's surface layers is much less than the overall density of the planet, as calculated from the planet's rotation.

The interior must be denser than average if the surface layers are less dense.

Explanation

Syed Murad Ali Shah was sworn in as the 25th chief minister of Sindh

Sworing-in date: 27 Feb 2024

Murad Ali Shah party: Pakistan Peoples Party (PPP)

List of Chief Ministers of Sindh from 1947 till today

Explanation

Cell biology  is a branch of biology that studies the structure, function, and behavior of cells.

All living organisms are made of cells.

also cellular biology or cytology

Explanation

• Coal, fossil fuels, crude oil, natural gas, etc are all hydrocarbon fuels.
• These are called as non-renewable source of energy because they take millions of years to regenerate themselves.
• Water energy is renewable because it is regenerated by water cycle.
• Also wind energy and solar energy are renewable sources of energy.

Explanation

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Explanation

The most abundant naturally occurring gas is nitrogen (N2), which makes up about 78% of air.

Oxygen (O2) is the second most abundant gas at about 21%.

The inert gas argon (Ar) is the third most abundant gas at 0.93%.

Explanation

Oxyacetylene welding, commonly referred to as gas welding,

is a process which relies on combustion of oxygen and acetylene

Explanation

Soil fertility can be maintained without adding extra nutrients due to microbial activity.

Microbes increase the amount of nutrients in the soil that are available to plants