Protect our Earth's Environment Mystery Science ecosystems day 6

What is oxygen's role in the environment?

• A type of solid that plants need to grow
• A type of gas that plants use to breathe
• A type of gas that animals use to breathe and that plants release
• A type of liquid that animals drink

What is an algae bloom?

• A decrease in algae population
• A quick increase in the amount of algae growing in an area
• A type of plant
• A type of fish

How is 'environment' defined in the text?

• Only plants in a particular place
• All the living and nonliving things in a particular place
• Only living things in a particular place
• Only nonliving things in a particular place

What is a fertilizer?

• A type of bird
• A type of insect
• A type of fish
• A material that contains nutrients to help plants grow

Why is it important to control fertilizer use to protect the environment?

• To promote the growth of healthy algae
• To decrease nutrient levels in the water
• To prevent harmful algae blooms and their negative impacts
• To increase algae blooms

What is a nutrient?

• A substance that living things need to grow and stay healthy
• A type of gas that animals use to breathe
• A type of rock
• A type of metal

How do algae blooms impact the environment?

• They decrease nutrient levels in the water
• They increase oxygen levels in the water
• They have no impact on the environment
• They can lead to fish kills due to lack of oxygen

What are algae?

• Tiny insects in water
• Tiny living things in water that produce their own food
• Small rocks in water
• Microscopic animals in water

In the context of environmental protection, what does 'disadvantage' mean?

• Something that is bad or reduces the chances of success
• Something that is good for the environment
• Something that is essential for the environment
• Something that is neutral for the environment

What is runoff?

• A type of plant
• Water that stays stagnant in one place
• Water that moves across a surface, often carrying materials with it
• A type of animal