Understanding Our Environment Pre-Assessment

Which of the following is a non-living component of an ecosystem?

• Tree

• Sunlight

• Rabbit

• Grass

What is the primary source of energy for most food chains on Earth?

• Wind

• Sun

• Water

• Soil

Which biome is characterized by very low temperatures and permafrost?

• Desert

• Tundra

• Rainforest

• Grassland

What process in the water cycle involves water vapor cooling and changing into liquid droplets?

• Evaporation

• Condensation

• Precipitation

• Infiltration

Which gas is most responsible for trapping heat in Earth’s atmosphere and contributing to climate change?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Which of the following is considered a renewable energy source?

• Coal

• Solar power

• Natural gas

• Oil

Which of the following best describes a habitat?

• The process by which plants make food

• The place where an organism lives

• The movement of water through the environment

• The role an organism plays in its ecosystem

In a simple food chain, which organism is usually the producer?

• Lion

• Grass

• Snake

• Hawk

Which process returns water from plants to the atmosphere?

• Precipitation

• Transpiration

• Runoff

• Infiltration

Which of the following is an effect of climate change?

• Decreased rainfall in all regions

• Rising global temperatures

• Increased oxygen levels

• Lower sea levels