Ecosystems and the Petrified Forest Quiz

What holds the soil together on a hillside?

• The plant roots

• The rain

• The wind

• The rocks

What happens to the topsoil during a flood?

• It becomes richer

• It is removed

• It turns into clay

• It grows plants

What is the Petrified Forest known for?

• A tropical rainforest

• Living dinosaurs

• Ancient trees turned to stone

• A large river

How did the trees in the Petrified Forest turn to stone?

• They were eaten by animals

• They were burned by the sun

• They were covered by mud and turned to rock over time

• They were frozen

What type of ecosystem is the Petrified Forest now?

• A rocky desert

• A swamp

• A grassland

• A rainforest

What role do coyotes play in the Petrified Forest ecosystem?

• Top of the food chain

• Decomposers

• Nutrient providers

• Producers

Why is the Petrified Forest still considered an ecosystem?

• Because it has a variety of living things

• Because it has no life

• Because it is always raining

• Because it is a forest

What evidence shows that there were once dinosaurs in the Petrified Forest?

• Fossils of birds

• Fossils of fish

• Fossils of swamp plants

• Fossils of crocodile-like dinosaurs

What happens to the landscape during a big flood?

• It becomes a lake

• It can be changed completely

• It becomes a mountain

• It stays the same

How do living things in the Petrified Forest adapt to changes?

• They find a way to adapt and survive

• They stop growing

• They move to another place

• They become extinct