Year 9 - Earth's Cycles and Climate Change Quiz (level 9)

What causes the occurrence of eclipses on Earth?

• The rotation of Earth on its axis

• The cyclic changes in the relative positions of Earth, the Sun, and the Moon

• The tilt of Earth's axis

• The distance between Earth and the Sun

Which process is NOT involved in the carbon cycle on Earth?

• Photosynthesis

• Respiration

• Combustion of fossil fuels

• Nuclear fusion

How do the processes of photosynthesis and respiration affect Earth's systems?

• They only affect the atmosphere

• They change the composition of Earth's interrelated systems over time

• They have no impact on Earth's systems

• They only affect the biosphere

What is a major consequence of the interactions between greenhouse gas emissions and energy exchanges within Earth's systems?

• Increased volcanic activity

• Global climate change

• Decreased sea levels

• Increased biodiversity

Which activity is NOT a focus for mitigating human-induced climate change?

• Power generation

• Deforestation

• Manufacturing

• Space exploration

What natural phenomenon is influenced by the cyclic changes in the positions of Earth, the Sun, and the Moon?

• Earthquakes

• Tides

• Volcanic eruptions

• Mountain formation

Which of the following is a key process in the carbon cycle that involves the breakdown of rocks?

• Photosynthesis

• Weathering

• Respiration

• Combustion

What is the primary effect of vulcanism on Earth's systems?

• It decreases atmospheric carbon dioxide

• It increases atmospheric carbon dioxide

• It has no effect on Earth's systems

• It only affects the hydrosphere

Which of the following is a predictable phenomenon on Earth caused by the relative positions of Earth, the Sun, and the Moon?

• Seasons

• Earthquakes

• Volcanic eruptions

• Tsunamis

What is the role of combustion of fossil fuels in the carbon cycle?

• It decreases atmospheric carbon dioxide

• It increases atmospheric carbon dioxide

• It has no effect on the carbon cycle

• It only affects the lithosphere