G8-GEO-L2 Land, Soil, Water, Natural Vegetation and Wildlife Resources

What percentage of the Earth's surface is covered by land?

• 10%
• 30%
• 50%
• 70%

Which of the following is NOT a factor that determines land use?

• Topography
• Soil
• Ocean currents
• Availability of water

What is the process by which rocks are broken down to form soil?

• Erosion
• Weathering
• Deposition
• Sedimentation

Which of the following is NOT a method of soil conservation?

• Terrace farming
• Contour ploughing
• Intercropping
• Monocropping

What percentage of Earth's water is freshwater suitable for human use?

• Less than 1%
• About 3%
• About 10%
• About 25%

What is the term for the continuous movement of water on Earth through evaporation, precipitation, and runoff?

• Water cycle
• Hydrosphere
• Aquifer system
• Ocean current

Which of the following is NOT a cause of water pollution?

• Industrial effluents
• Agricultural chemicals
• Domestic sewage
• Photosynthesis

What type of irrigation is most effective in dry regions with high rates of evaporation?

• Flood irrigation
• Sprinkler irrigation
• Drip irrigation
• Furrow irrigation

Which factor primarily determines the growth of natural vegetation?

• Soil type
• Temperature and moisture
• Altitude
• Wind patterns

What type of vegetation is found in cold Polar Regions?

• Tropical rainforest
• Deciduous forest
• Tundra
• Savanna