Question 1

Which of the following is a result of photosynthesis?

Accepted Answer

Oxygen production

Answer

Methane production

Answer

Nitrogen production

Answer

Carbon dioxide production

Question 2

What is the function of the mitochondria in a cell?

Accepted Answer

Producing energy

Answer

Producing waste

Answer

Storing water

Answer

Digesting food

Question 3

Which of the following is a characteristic of an object with a high density?

Accepted Answer

It sinks in water

Answer

It dissolves in water

Answer

It floats in water

Answer

It changes color in water

Question 4

Which of the following is a conductor of electricity?

Accepted Answer

Copper

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 5

Which of the following is a property of matter?

Accepted Answer

Boiling point

Answer

Happiness

Answer

Tallness

Answer

Friendliness

Question 6

What is the name for the process by which plants make their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Fermentation

Answer

Transpiration

Question 7

Which layer of the Earth's atmosphere is closest to the Earth's surface?

Accepted Answer

Troposphere

Answer

Thermosphere

Answer

Stratosphere

Answer

Mesosphere

Question 8

What is a decomposer in an ecosystem?

Accepted Answer

An organism that breaks down dead organic matter

Answer

A large predator that hunts other organisms

Answer

A type of plant that provides food and shelter for other organisms

Answer

An organism that makes its own food through photosynthesis

Question 9

What is a food chain in an ecosystem?

Accepted Answer

A linear sequence of organisms where each one is eaten by the next in the chain

Answer

A group of organisms that interact with each other in a specific area

Answer

A type of fishing line used to catch large fish

Answer

A specific type of tree found in forests

Question 10

What is an ecosystem?

Accepted Answer

A community of living and nonliving things interacting with each other

Answer

A type of transportation

Answer

A type of computer program

Answer

A human body system

Question 11

What is the importance of biodiversity in ecosystems?

Accepted Answer

It allows for a greater variety of organisms, increasing the stability and resilience of the ecosystem

Answer

It has no impact on the health of the ecosystem

Answer

It decreases the number of organisms, making the ecosystem easier to manage

Answer

It only benefits large organisms, such as mammals and birds

Question 12

What is the largest ecosystem on Earth?

Accepted Answer

The marine ecosystem

Answer

The desert ecosystem

Answer

The tundra ecosystem

Answer

The rainforest ecosystem

Question 13

What is the water cycle in an ecosystem?

Accepted Answer

The continuous movement of water through the ecosystem, including evaporation, condensation, and precipitation

Answer

The process of food being passed from one organism to another

Answer

The process of air being constantly exchanged between organisms

Answer

The process of soil being formed by erosion

Question 14

What is the primary source of energy for most living things in ecosystems?

Accepted Answer

The sun

Answer

Geothermal energy

Answer

Fossil fuels

Answer

Wind energy

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