Explanation

The Great Wall of China was built mainly to protect against invasions from northern tribes like the Mongols.

It served as a military barrier and lookout system across China's northern frontier.

Explanation

SAARC stands for South Asian Association for Regional cooperation.

The first summit was held in Dhaka in December 1985.

Hussain Irshad was the President of Bangladesh at the time of establishment of SAARC.

Current members of SAARC are 8.

Headquarters located in Khatmandu.

Bangladeshi President Ziaur Rahman in 1977 to foster regional cooperation.

Explanation

Constitutional Purpose:

A constitution serves as the supreme legal document that:

• Outlines the government’s structure (e.g., separation of powers in Pakistan’s 1973 Constitution).
• Defines fundamental laws and citizens’ rights (e.g., Articles 8-28 in Pakistan’s Constitution).
• Establishes procedures for governance (e.g., elections, judiciary).

Explanation

The Himalayas were formed by the collision of the Indian and Eurasian tectonic plates.

They are the highest and most prominent fold mountains in Asia, including Mount Everest.

Explanation

The pyramids, especially the famous ones at Giza, were built by the ancient Egyptians as tombs for their pharaohs.

They are architectural wonders that reflect the engineering skills and religious beliefs of ancient Egypt.

Explanation

Capitalism emphasizes private ownership of resources and businesses.

It supports a free market where supply and demand determine prices and production.

Explanation

Explanation

Core Reason for Trade:

Comparative Advantage: Countries specialize in producing what they are most efficient at and trade for other goods/services (e.g., Pakistan exports textiles, imports oil).

Diverse Needs: No country produces everything it requires (e.g., Japan imports food due to limited arable land).

Explanation

The United States is a classic example of a federal system, where powers are divided between the national and state governments.

In a federal system, each level has its own laws, government, and responsibilities.

Explanation

A glacier is a large, slow-moving river of ice formed from compacted layers of snow.

It moves due to gravity and pressure.

It is commonly found in polar and mountainous regions.