Sure, here are 10 multiple-choice questions (MCQs) about Earth:

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  1. What is the Earth’s primary source of energy for sustaining life?
    a) Wind
    b) Geothermal heat
    c) Solar radiation
    d) Nuclear fusion
  2. Which layer of the Earth’s atmosphere is responsible for protecting life from harmful UV radiation?
    a) Troposphere
    b) Stratosphere
    c) Mesosphere
    d) Thermosphere
  3. What is the approximate diameter of the Earth?
    a) 6,371 km (3,959 miles)
    b) 10,000 km (6,213 miles)
    c) 12,742 km (7,918 miles)
    d) 16,000 km (9,942 miles)
  4. Which natural process is responsible for the formation of mountains?
    a) Erosion
    b) Volcanism
    c) Sedimentation
    d) Plate tectonics
  5. The majority of Earth’s freshwater is found in:
    a) Glaciers and ice caps
    b) Rivers and lakes
    c) Underground aquifers
    d) Oceans and seas
  6. The movement of tectonic plates is primarily driven by:
    a) Wind currents
    b) Ocean currents
    c) Earth’s rotation
    d) Convection currents in the mantle
  7. What is the name of the process by which plants release water vapor into the atmosphere?
    a) Condensation
    b) Precipitation
    c) Transpiration
    d) Evaporation
  8. Earth experiences seasons due to:
    a) Changes in Earth’s distance from the Sun
    b) Variations in Earth’s axial tilt
    c) Changes in the Sun’s brightness
    d) Earth’s elliptical orbit
  9. The outermost solid layer of the Earth is called the:
    a) Mantle
    b) Crust
    c) Core
    d) Lithosphere
  10. The Earth’s magnetic field is primarily generated by the movement of molten iron and nickel in the:
    a) Outer core
    b) Inner core
    c) Mantle
    d) Crust

Answers:

  1. c) Solar radiation
  2. b) Stratosphere
  3. c) 12,742 km (7,918 miles)
  4. d) Plate tectonics
  5. a) Glaciers and ice caps
  6. d) Convection currents in the mantle
  7. c) Transpiration
  8. b) Variations in Earth’s axial tilt
  9. b) Crust
  10. a) Outer core