Countries and Capitals
Population
Islands
Rivers
Mountains
100

This capital city is named after the country's first President, a general who fought in a war of independence against Britain. 

What is Washington, D.C.?

100

This is the number you get when you subtract death rate from birth rate.

What is the natural rate of increase?

100

This is the largest island in the world (not counting continents, or the continent-sized Australia).

What is Greenland?

100

This famous river flows through Egypt and empties into the Mediterranean Sea.

What is the Nile?

100

This peak on the Nepal-India border is the second highest mountain in Nepal (and the third in the world).

What is Kanchenjunga?

200

This city first became the capital of its country in 1264, under emperor Kublai Khan of the Yuan Dynasty 

What is Beijing?

200

This is the phrase for a single child having to support both parents and up to four grandparents after their retirement.  

What is the 4-2-1 problem?

200

This island nation lies just south of India in the Indian Ocean.

What is Sri Lanka?

200

This river, moving through a major rainforest basin, carries more water than any other river in the world.

What is the Amazon?

200

This mountain range stretches along the western edge of South America.

What is the Andes?

300

This city was capital of the Abbasid Empire after 762 AD, and has been capital of Iraq since 1920.

What is Baghdad?

300

The world population reached roughly this number in 1800.

What is one billion?

300

This large island off the east coast of Africa is famous for its small primates and other rare animals and plants.

What is Madagascar?

300

This river flows through the world's deepest gorge, with 8,000 meter peaks on either side.

What is the Kali Gandaki?

300

This US state holds the highest mountain in North America, known as Denali or Mt McKinley.

What is Alaska?

400

The name of this South American capital city means "fair winds" or "good air."

What is Buenos Aires, capital of Argentina?

400

In this island country in North America (the Caribbean Sea), the total fertility rate is higher than the replacement rate of 2.1.

What is Haiti?

400

This island in the Mediterranean sea is the smallest country in the European Union.

What is Malta?

400

This European river flows through countries including Germany, Austria, Hungary and Romania before reaching the Black Sea.

What is the Danube?

400

This mountain in Tanzania is the highest peak in Africa.

What is Kilimanjaro?

500

This African country changed its capital in 1996 from Dar es Salaam (a coastal trading city) to Dodoma (in the interior of the country).

What is Tanzania?

500

In this stage of the demographic transition model, death rates have already fallen and birth rates begin to fall, causing a slowing of population growth.

What is Stage Three?

500

This large Asian island is shared by three countries: Indonesia, Malaysia and Brunei. 

What is Borneo? 

500

This river begins on the Tibetan Plateau and flows through China, Myanmar, Laos, Thailand, Cambodia and Vietnam.

What is the Mekong?

500

This mountain range, running through Russia, is considered the boundary between Europe and Asia.

What are the Ural Mountains?