Natural Resources and Calamities Quiz

Three resources are described below: Resource X: Used to run cars; found underground; limited supply Resource Y: Used in homes for light; available every day; never runs out Resource Z: Comes from water; needs a dam to convert it to electricity Which resources are renewable?

1. X only
2. X and Y only
3. Y and Z only
4. Z only

Answer: (c) Y and Z only

During a science experiment, Sarah noticed that the weather balloon she launched showed sudden changes in temperature and pressure in the first few kilometers from the ground. She also recorded cloud formation and rain during her observation. Based on her findings, in which layer of the atmosphere was the balloon most likely collecting data?

1. Stratosphere
2. Exosphere
3. Thermosphere
4. Troposphere

Answer: (d) Troposphere

Consider the following statements and choose whether they are true or false. 1. The exosphere is suitable for humans to breathe because it has less pollution. 2. The troposphere is the layer where most weather phenomena occur. 3. The stratosphere contains the ozone layer, which protects Earth from harmful ultraviolet rays.

1. 1 – False, 2 – False, 3 – True
2. 1 – True, 2 – True, 3 – False
3. 1 – True, 2 – False, 3 – False
4. 1 – False, 2 – True, 3 – True

Answer: (d) 1 – False, 2 – True, 3 – True

A farmer studied three different soil samples and recorded the following data given in table below. Which soil sample is most suitable for growing vegetables and why? Sample Color Water Retention Nutrient Content A Dark High High B Red Low Low C Brown Medium Medium

1. Sample A — because it retains more water and is rich in nutrients
2. Sample B — because sandy soil drains water quickly
3. Sample C — because clayey soil holds medium nutrients
4. Sample B — because red color indicates fertile soil

Answer: (a) Sample A — because it retains more water and is rich in nutrients

Study the given table and select the option that best represents the headings X, Y and Z. Resource Used for Time to Form/Replenish Renewable? X Electricity Replenishes continuously Yes Y Heating Replenishes naturally Yes Z Fuel Takes millions of years to form No

1. X – Wind, Y – Geothermal, Z – Petroleum
2. X – Geothermal, Y – Wind, Z – Natural Gas
3. X – Petroleum, Y – Wind, Z – Geothermal
4. X – Natural Gas, Y – Petroleum, Z – Wind

Answer: (a) X – Wind, Y – Geothermal, Z – Petroleum

Match the soil conservation technique with its correct description. Conservation Method Description A Terracing 1 Rows of trees planted to stop wind B Contour ploughing 2 Farming along curves of slopes C Windbreaks 3 Cutting steps into hills D Mulching 4 Covering soil to prevent evaporation

1. A-1, B-4, C-2, D-3
2. A-2, B-3, C-4, D-1
3. A-4, B-1, C-2, D-3
4. A-3, B-2, C-1, D-4

Answer: (d) A-3, B-2, C-1, D-4

A school in a coastal area conducts a drill where students practice moving to higher ground quickly after hearing a siren. The region often receives alerts due to a sudden drop in air pressure and high-speed circular winds. What is the school preparing students for?

1. Tsunami caused by an undersea earthquake
2. Cyclone likely to cause coastal flooding
3. Earthquake due to tectonic plate movement
4. Flooding due to glacier melting

Answer: (b) Cyclone likely to cause coastal flooding

Which calamity causes both wind damage and water flooding in coastal regions?

1. Earthquake
2. Tsunami
3. Drought
4. Cyclone

Answer: (d) Cyclone

Select the correct sequence of events that best explains how human activities can lead to drought.

1. Over-irrigation → Groundwater rises → More rain → Drought
2. Cutting trees → Soil erosion → Less water retained in ground → Drought
3. Using solar energy → Heating of soil → No rain → Drought
4. Organic farming → Crop growth → More rain → Drought

Answer: (b) Cutting trees → Soil erosion → Less water retained in ground → Drought

A farmer reported: 1. Cracks in the field 2. Crop failure 3. Nearby riverbed went dry 4. Months later → a huge fire occurred in the region Which sequence of natural events most reasonably explains this?

1. Flood → Earthquake → Forest fire
2. Earthquake → Cyclone → Wildfire
3. Drought → Soil drying → Forest fire
4. Volcanic eruption → Tsunami → Drought

Answer: (c) Drought → Soil drying → Forest fire