Unit 4 Exam Practice

Which statement best describes the Andes Mountains?

• They are the world's shortest mountain range located in Central America.

• They are the longest continental mountain range in the world along the west coast of South America.

• They are an island chain in the Caribbean Sea.

• They form the natural boundary between North America and South America.

What human activity is linked to environmental impact in the Andes Mountains?

• Seasonal flooding from monsoons

• Construction of roads, railroads, and mining camps

• Expansion of coral reefs

• Introduction of rice paddies

Which feature counts for over half of the planet's rainforest and is situated near the equator?

• Amazon Rainforest

• The Pampas

• Yucatan Peninsula

• Tierra del Fuego

A major effect of development on the Amazon Rainforest has been:

• Transformation to an agricultural export economy through clearing and planting

• Increased snowfall and glaciation

• Creation of new deserts

• Formation of coral atolls

Which physical feature connects North America to South America and contains a major man-made waterway?

• Amazon River

• Panama Isthmus

• Yucatan Peninsula

• The Pampas

What was a key impact of the Panama Canal's opening in 1914?

• It ended deforestation in Central America.

• It opened a direct trade route.

• It connected the Amazon River to the Gulf of Mexico.

• It caused the Andes to uplift further.

The Amazon River is described in the material as:

• The longest river in the world

• The second longest river in the world

• A small tributary of the Orinoco

• An underground river in Mexico

What environmental threat accompanies new highways and air transport along the Amazon River?

• Melting permafrost

• Deforestation and pollution threatening biodiversity

• Volcanic eruptions

• Rising salinity turning it into a salt river

The Pampas are best characterized as:

• Mountain tundra where llamas and sheep reside

• Fertile lowlands in parts of Argentina, Uruguay, and Brazil

• A tropical rainforest near the equator

• An archipelago at the southernmost tip of South America

Which human action has contributed to soil erosion in the Pampas?

• Building coral reefs

• Conversion of grasslands to cultivated lands and grazing cattle

• Planting mangroves

• Draining the Amazon River