Stemscopes Exam Environmental Science 2

Question 1

What is the primary cause of acid rain?

Accepted Answer

Sulfur dioxide and nitrogen oxide emissions

Answer

Acid rain is mainly caused by sulfur dioxide and nitrogen oxides released from burning fossil fuels, which react with water vapor to form acids.

Question 2

What is a food web?

Accepted Answer

A network of interconnected food chains in an ecosystem

Answer

A food web shows the complex, interconnected feeding relationships among many organisms in an ecosystem.

Question 3

What does the term 'carrying capacity' mean?

Accepted Answer

The maximum population an environment can sustainably support

Answer

Carrying capacity is the largest population size that an environment can support given its available resources.

Question 4

Which layer of Earth's atmosphere protects living things from harmful UV radiation?

Accepted Answer

Stratosphere (ozone layer)

Answer

The ozone layer in the stratosphere absorbs most of the Sun's harmful ultraviolet (UV) radiation.

Question 5

What is the difference between a producer and a consumer?

Accepted Answer

Producers make their own food; consumers eat other organisms

Answer

Producers (like plants) make their own food through photosynthesis, while consumers obtain energy by eating other organisms.

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