Which of the following is a producer in an ecosystem?
  • Rabbit
  • Grass
  • Hawk
  • Mushroom
What is the main source of energy for the Earth’s climate system?
  • The Moon
  • The Sun
  • The Earth’s core
  • Ocean currents
Which process is responsible for the recycling of nutrients in ecosystems?
  • Photosynthesis
  • Decomposition
  • Respiration
  • Erosion
What is the most important rule when working with electricity in the laboratory?
  • Use wet hands
  • Keep liquids away from electrical equipment
  • Touch wires with bare hands
  • Use metal tools only
Which of the following best describes the lithosphere?
  • The liquid outer core of the Earth
  • The rigid outer layer of the Earth, including the crust and upper mantle
  • The gaseous layer surrounding the Earth
  • The layer where magma is found
What is the correct way to dispose of broken glass in the laboratory?
  • Place it in the regular rubbish bin
  • Put it in a designated glass disposal container
  • Leave it on the bench for the teacher
  • Wash it and reuse
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