GSS Agriculture - Form 4 Paper 1

Which of the following is NOT a factor that contributes to soil formation?

• Temperature

• Rainfall

• Plant roots

• Volcanic activity

What is the primary source of minerals in the soil?

• Rocks

• Water

• Air

• Sunlight

Which of the following processes breaks down rocks into smaller pieces during soil formation?

• Weathering

• Erosion

• Deposition

• Compaction

Which organism plays a crucial role in enriching the soil with organic matter?

• Earthworms

• Birds

• Bees

• Fish

Where do soils originate from?

• Volcanoes

• Mountain top

• Rocks

• Sea bed

Which instrument is used to measure wind direction?

• Barometer

• Anemometer

• Thermometer

• Hygrometer

What is the purpose of a rain gauge?

• To measure air pressure

• To measure humidity

• To measure wind speed

• To measure rainfall

Which instrument is used to measure atmospheric pressure?

• Thermometer

• Hygrometer

• Barometer

• Anemometer

What is the main function of a wind vane?

• To measure temperature

• To measure humidity

• To measure wind speed

• To measure wind direction

Which instrument is used to measure the amount of moisture in the air?

• Hygrometer

• Thermometer

• Barometer

• Anemometer