Hot Desserts Flashcards

1
Q

Where are Hot deserts Located?

A
  • They are Found 15° and 35° north and south of the Equator.
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2
Q

There is Very Little Rainfall Less than (_______) Per Year.

A
  • 250 mm
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3
Q

Temperatures Can Be extreme it can Reach (_______) in the Day.

A
  • 45°
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4
Q

Write A Definition of Arid?

A
  • Its Were there is very Little Rainfall And It Just Means Dry
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5
Q

A Lack Of Leaf Fall Limits the Soil (_______)
Soil is Often (______) with a (______) Texture.

A
  • Fertility
  • Shallow
  • Gravelly
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6
Q

What Size Is Suitable For Mammals And Explain Why?

A
  • Small Size Because then They Can Survive And Will Not Sweat A lot
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7
Q

What Is The Difference Between Biotic And Abiotic?

A
  • Biotic Means Living For example Plants and Animals
  • Abiotic Means Not Living For Example Sunlight
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8
Q

Write A Definition Of Aquifers?

A
  • A Aquifer Is A Layer of Rock or Soil That Holds Water Underground
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9
Q

How Long Are Tap Roots?

A

They Are 7-10 Metres Long

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10
Q

If A Cactus Has Spines And A Waxy Surface how will it help it survive?

A
  • Because Thirsty Animals would want Water And would want To get water From the cactus but the it has spines which helps it defend itself
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11
Q

Name 3 Adaptations camels have to help them survive in the desert And Explain It?

A
  • Long Lashes-Helps them because So sand Doesn’t go in there Eyes
  • Their Hump has Stored all their fat- This Helps them Because their gat is a source of energy
  • Big Feet - So It doesnt sink in the Sand
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12
Q

Name 3 Reasons why the Desert have low Biodiversity?

A
  • Extreme Temperature
  • limited Water Sources
  • Nutrient Poor soil
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13
Q

Write A Definition about Desertification?

A

-Desertification is the process by which fertile land becomes desert

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14
Q

Name 5 Opportunities in The Sahara Desert?

A
  • Mineral Resources
  • Oil and Gas
  • Solar Energy
  • Tourism
  • Farming
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15
Q

Name 3 Challenges In The Sahara Desert?

A
  • Extreme TemPeratures
  • Limited Water Supply
  • Inaccessibility
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16
Q

Name 2 Climate Cause of Desertification?

A
  • Low Rainfall
  • Temperature
17
Q

Name 4 Human Activities Which Cause Desertification And Explain Why?

A
  • Population Growth- More people on the land More Pressure
  • Removal Of wood - Removing trees causes the Soil becoming Exposed
  • OverGrazing- too many animals eating The plants Faster Than They can Regrow
  • Over-Cultivation- If Crops are Planted in the Same Area Then all The nutrients and all the soil is used meaning Plants can’t grow Their aging
18
Q

Write a Definition Of OverGrazing?

A
  • Its Where plants Eat Plants Faster Than it Can Grow
19
Q

Write a Definition Of OverCultivation?

A
  • if Crops are planted in the same area they take the nutrients and then plants cant grow in that area
20
Q

Name 4 Ways Desertification can be Reduced?

A
  • Water Management
  • Tree Planting
  • Soil Management
  • Appropriate Technolgy
21
Q

Name 4 Facts About the Great Green Wall Of Africa

A
  • The Great Green wall is a Sustainable Development occurring along the Sahel
  • It is a African Led- Project Which is Covering 11 Contrises East - West Africa
22
Q

What is The Great Green Wall Of Africa Doing

A
  • The Project aims To Reverse Desertification and Bring Dry land Back To Life
  • By Planting Trees The Canopy Increase Humidity and Provides Shade Meaning less water is needed
  • Drought Resistant Trees have been Planted also holding Moisture in the Soil
  • It will Cost 8 Billion Dollars In Total
23
Q

Name 4 Reasons How The scheme helped already

A
  • Greater food Security
  • More Jobs
  • People Can sell Their Products to make the Area More Economically Developed
  • Planting Trees Encourages Agriculture and Brings Economic Benefits