Benchmark Review

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, which leads to an increase in the planet's temperature.

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What are greenhouse gases?

Back

Greenhouse gases are gases that contribute to the greenhouse effect by absorbing infrared radiation. Key examples include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

Front

What is the primary source of carbon dioxide emissions?

Back

The primary source of carbon dioxide emissions is the burning of fossil fuels for energy, such as coal, oil, and natural gas.

Front

What is energy transfer efficiency in ecosystems?

Back

Energy transfer efficiency refers to the percentage of energy that is passed from one trophic level to the next in an ecosystem, typically around 10%.

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What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

How do photosynthesis and cellular respiration relate to each other?

Back

Photosynthesis produces oxygen and glucose, which are used in cellular respiration to produce energy, carbon dioxide, and water.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients from producers to consumers.

Front

What happens to a population when a predator increases?

Back

When a predator population increases, it can lead to a decrease in the prey population due to increased predation.

Front

What is the formula for cellular respiration?

Back

The formula for cellular respiration is: glucose + oxygen = carbon dioxide + water + energy.