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Life Sciences ( Grade 10 ) > Soil > Flashcards

Soil Flashcards

1
Q

How many types of soil are there?

A

3

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2
Q

What are the types of soil?

A

Clay . Loam. Sand

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3
Q

Features of clay?

A

Consists of tiny small particles

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4
Q

Which soil has tiny particles

A

Clay

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5
Q

Soil that has slightly bigger particles than clay

A

Loam

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6
Q

Features of sand

A

Soil is coarser and consists of large particles

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7
Q

True or False? Loam has bigger particles comaperd to clay but smaller than sand?

A

True.

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8
Q

There is no water between the particles?

A

False

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9
Q

What is vital for the survival for soil organisms?

A

Air

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10
Q

Poorly aerated soil?

A

Clay

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11
Q

Why does sand have low water holding capacity?

A

It’s particles are large.

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12
Q

Why is the drainage of clay poor?

A

Has tiny soil particles

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13
Q

Disadvantage of clay soil

A

Plants may rot easily

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14
Q

Most suitable soil type for plant growth and why

A

Loam. Has medium water holding capacity and is well aerated and contain sufficient nutrients.

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15
Q

What is leaching?

A

Process in which water washes away valuable nutrients in soil.

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16
Q

Which soil mostly experiences leaching

A

Sand

17
Q

Humus? ( compost)

A

Decayed plant and animal matter

18
Q

Why is humus beneficial

A

It increases both the soil fertility and the water holding capacity of soil

19
Q

Which plants grow better in alkaline soil ( high ph)

A

Succulent plants

20
Q

Most plants grow better in neutral soil ? True

A

True

21
Q

Features of humus

A

Dark in colour
Binds mineral particles together in soil
Absorb water

22
Q

Soil texture?

A

Depends on size of soil particles and how they are mixed

23
Q

Texture of sand

A

Rough and coarse

24
Q

Xerophytes

A

Low water holding capacity
Shallow roots
Succulent leaves
Thorns instead of leaves

25
Q

Mesophytes

A

Good water holding capacity

Plants adapted to conditions that are medium

26
Q

Hydrophtyes

A

Lot of water

Life Sciences ( Grade 10 ) (2 decks)

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