Arctic and Alpine Tundra Characteristics

Tundras are cold, treeless biomes with low rainfall. There are two types: alpine, found on mountains, and arctic, near the Arctic Ocean. Alpine tundras have a 180-day growing season and support wildlife like goats and birds. Arctic tundras have permafrost, limiting tree growth but allowing shrubs and wildlife like foxes and bears. Global warming is melting permafrost, releasing carbon and altering ecosystems.

What are the main characteristics of tundras?

• Treeless regions with extreme cold and low rainfall

• Dense forests with moderate temperatures

• Deserts with very low rainfall

• High temperatures and high rainfall

Which of the following is NOT a type of tundra?

• Arctic

• Alpine

• None of the above

• Tropical

Where do alpine tundras occur?

• In deserts

• In tropical rainforests

• On mountains at high altitudes

• In the Arctic region

What is the approximate length of the growing season in alpine tundras?

• 180 days

• 100-120 days

• 50-60 days

• 365 days

Which animals are commonly found in alpine tundras?

• Lions and tigers

• Mountain goats, sheep, marmots, and birds

• Polar bears and caribou

• Elephants and rhinos

What prevents trees from taking root in the arctic tundra?

• High temperatures

• Permafrost

• Lack of sunlight

• Excessive rainfall

How long do the short summers last in the arctic tundra?

• 30-40 days

• 50-60 days

• 70-80 days

• 90-100 days

What percentage of the earth's carbon is contained in permafrost?

• 20%

• 14%

• 10%

• 5%