Saharan Dust's Impact on Amazon

Saharan Dust's Impact on Amazon

Assessment

Interactive Video

Science, Geography, Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video explores the connection between the Sahara Desert and the Amazon Rainforest through the transport of dust. This dust, rich in phosphorus, travels across the Atlantic, providing essential nutrients to the Amazon's ecosystem. NASA's CALIPSO satellite has quantified this dust transport, revealing significant variability influenced by factors like rainfall in the Sahel region. The research aims to understand the impact of climate change on this process and its ecological significance.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What connects the Sahara Desert and the Amazon Rainforest?

A river of dust

A river of ice

A river of lava

A river of water

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What essential nutrient does Saharan dust provide to the Amazon?

Nitrogen

Calcium

Potassium

Phosphorus

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which satellite is used by NASA to study the dust transport from the Sahara to the Amazon?

CALIPSO

Hubble

Galileo

Voyager

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much of the Sahara's dust reaches the Amazon basin each year?

10 million tons

27.7 million tons

50 million tons

100 million tons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor is linked to the variability in dust transport to the Amazon?

Rainfall in the Sahel

Temperature changes

Volcanic activity

Ocean currents

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to dust transport when rainfall in the Sahel is higher?

The volume of dust increases

The volume of dust decreases

The volume of dust remains the same

The volume of dust doubles

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one possible reason for less dust being transported when Sahel rainfall is higher?

Higher temperatures

More vegetation grows, reducing exposed sand

Stronger ocean currents

Increased volcanic activity

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