Question

Which of the following statements accurately describe desert ecosystems?

1. Deserts are biomes where evaporation significantly exceeds precipitation.
2. A desert environment typically receives more than 500 mm of annual precipitation.
3. Deserts are exclusively characterized by sandy landscapes with dunes.
4. Deserts can be classified based on temperature and precipitation patterns into categories like hot, semi-arid, coastal, and cold.

• A. 2 only
• B. 1, 4
• C. All
• D. 1 only

Answer 1

Answer:

B. 1, 4

• The Desert is a biome in which evaporation exceeds precipitation.

• A desert is likely to develop where the annual precipitation is less than 250 mm.

• Deserts may be classified into hot and dry deserts, semi-arid deserts, coastal deserts and cold deserts, based on the amount and distribution of temperature and precipitation.

• Sand is commonly found in deserts but all desert landscapes are not dominated by sand. Deserts in which sand is in abundance, completely covering the ground and leading to the formation of dunes that resemble wave-like ridges of the ocean surface, are called erg, meaning a sand sea.