Explanation

The moon's surface is covered with a layer of fine dust called regolith.

This layer consists of tiny fragments of rock and mineral particles created by meteorite impacts.

Explanation

Hagfish are marine creatures that possess four hearts.

These hearts pump blood through a series of vessels.

These play a role in maintaining blood pressure and circulation.

Explanation

In 1992, the membership of the Economic Cooperation Organization (ECO) increased from 3 to 10.

This expansion marked a significant growth in the organization’s regional cooperation and influence.

Explanation

To find the rate of discount, first, we need to find the amount of discount.

Amount of discount = Original price - Selling price

= Rs 9,000 - Rs 7,200

= Rs 1,800

Now, we can find the rate of discount.

Rate of discount = (Amount of discount / Original price) × 100

= (Rs 1,800 / Rs 9,000) × 100

= 20%

So, the correct answer is: 20%

Explanation

The 21st Amendment to the Constitution of the Islamic Republic of Pakistan (1973) established military courts for the speedy trial of terrorist offenses, waging war against Pakistan, and acts threatening national security.

This amendment aimed to address increasing security concerns and ensure swift justice.

Explanation

The 14th Amendment to the Constitution of the Islamic Republic of Pakistan (1973) forbade floor crossing and considered it a breach of parliamentary rules.

This amendment aimed to strengthen party discipline and stability.

Explanation

The Constitution of the Islamic Republic of Pakistan (1973), in its amended form, is the 7th longest constitution in the world, with a word count of 56,240.

Its length is due to numerous amendments and detailed provisions.

Explanation

The draft of this Constitution was introduced in the Assembly on 9th January 1956 and was passed by the Assembly on 29th February 1956.

The assent was given on it by the Governor General on 2nd March 1956.

This Constitution was enforced with effect from 23rd March 1956.

Explanation

Kauromal Chandanmal Khilnani was the first to produce literary essays in Sindhi.

 Kauromal's well known works are Ratnavali (1888), Aryanari-carita (1905) and Radharani (1914).

Explanation

Uzbekistan touches the borders of all other Central Asian Republics.

It shares borders with Tajikistan, Kyrgyzstan, Kazakhstan, and Turkmenistan.