Climate Change and Azolla Ferns

Climate Change and Azolla Ferns

Assessment

Interactive Video

Biology, Science, Geography, History

6th - 10th Grade

Hard

Created by

Olivia Brooks

FREE Resource

The video explores a significant climate shift 50 million years ago, potentially caused by Azolla ferns. These ferns thrived in the Arctic, absorbing large amounts of CO2, which may have led to global cooling. The video discusses the discovery of Azolla in sediment cores, its role in reducing greenhouse gases, and its modern applications. It concludes with ongoing research into Azolla's potential to address current climate challenges.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What major climate event occurred around 50 million years ago?

The formation of the first continents

The extinction of dinosaurs

A shift from warm to ice age conditions

A sudden warming of the planet

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did the Arctic Coring Expedition discover in the sediment layers?

Fossilized remains of dinosaurs

A column of tiny fossilized ferns

Evidence of volcanic activity

Ancient human artifacts

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How did Azolla ferns manage to thrive in the Arctic Ocean?

They adapted to saltwater conditions

They grew in a layer of fresh water over the saltwater

They were transported by ancient birds

They evolved to survive in extreme cold

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role did Azolla ferns play in reducing greenhouse gases?

They increased methane levels

They blocked sunlight from reaching the Earth

They absorbed large amounts of carbon dioxide

They released oxygen into the atmosphere

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between Azolla ferns and Anabaena bacteria?

Anabaena provides nitrogen to Azolla

Azolla feeds on Anabaena

Anabaena protects Azolla from predators

Azolla and Anabaena compete for resources

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much did Azolla blooms reduce atmospheric CO2 levels?

From 4000 to 2000 parts per million

From 2500-3500 to 1500 parts per million

From 5000 to 3000 parts per million

From 1000 to 500 parts per million

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happened to Azolla ferns when the Arctic reconnected with other oceans?

They evolved into new species

They died and formed sediment layers

They migrated to other regions

They adapted to saltwater

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