Aqua & Rainforest Quiz

What percentage of the Earth's surface is covered in water?

• 50%
• 30%
• 75%

• 85%

The main difference between saltwater and freshwater regions is the content of _________?

• salt

• oxygen
• chlorine
• sugar

Salt content in freshwater is less than what percentage?

• 1%
• 10%
• 5%
• 2%

A marsh is able to have low-growing plants because....

• they have waterlogged soil that has water near the top of soil.

• they are supported by rocky terrain.
• they require high levels of sunlight.
• they thrive in dry, sandy soil.

What do you call where the stream and river merges with the ocean?

• Estuary
• Delta
• Cove
• Inlet

What are the two main factors that determine a biome?

• Climate and weather

• Geography and altitude
• Soil type and animal species
• Water availability and human activity

The pictures show a rainforest tree canopy and an Amazonian Royal Flycatcher that lives in this tree canopy. Choose all selections that best support populations of this species.

• It has trees with fruits for food

• It has lots of sunlight to stay warm

• It provides many places to nest and reproduce

• It has tall trees to stay above ground predators

At the bottom of the forest floor what type of life form would you find? Remember very little light reaches the floor if any.

• Birds and squirrels
• Deer and rabbits
• Fungi and mosses
• Sunflowers and daisies

Choose three things that can cause extinction.

• pollution

• loss of habitat

• competitor goes extinct

• loss of food source

• predators move away

How can human activities such as deforestation affect the diversity of the biosphere?

• Deforestation reduces biodiversity by destroying habitats, leading to species loss and ecosystem imbalance.
• Deforestation enhances ecosystem stability by removing weak species.
• Deforestation has no impact on the biosphere's diversity.
• Deforestation increases biodiversity by creating new habitats.