Wrrrry
Drrrrry
Crrrrry
Jrrrry
Mrrrry
100

◦Describe physical biological of rocks

Caused by the process of growth of plant roots in the rock and movement of animal

100

◦Complete the sentence below.

◦The root of plants contain an ____________ that allows the charged ions to bind with them and be taken up for use within the plant

Electric charge
100

◦What pH is considered as acidic soil?

<7

100

◦What pH is considered as alkaline soil?

>7

100
What is the disadvantage of slow release fertiliser

- Little immediate impact in plants may already have a deficiency problem

200

◦Describe physical chemical of rocks

Caused by carbon dioxide in the air combined with water forming carbonic acid

And acid rain

200

◦What is the name of the mineral ion for phosphorus?

Phosphate ions (PO4 3-)

200

◦How does fungi break down dead matter?

-Fungi feeds directly on dead matter and are particularly good at breaking down tough materials

200

◦What is arable farming?

Farming that focuses on production of plants for humans

200

Name the four types of fertilisers

1. Organic

2. Inorganic

3. Slow release fertilisers

4. Fast release fertilisers

300

◦Describe physical weathering of rocks

Rocks are broken down into smaller pieces caused by frost, heat, water and ice and wind

300

◦What is the name of the mineral ion for potassium?

Potassium ion (K+)

300

◦How does earthworm break down dead matter?

-Earthworms help break down vegetation by digesting it as it passes through their bodies and excreting the remains

300

What is an example of pastoral farming?

-Grass

-Grains

-Millk

-Wool

-Eggs

300

Name one benefit of crop rotation

- reduce plant diseases

- less pests

- the soil in the new plot is more likely to have the nutrients the crop needs. 

400

◦Mineral particles are the small pieces of rocks formed from weathering. Name the three main types of weathering

Physical

Chemical

Biological

400

◦Soil is one of the medium to grow plant. Name another medium that farmers use to grow plants.

-Mineral wool

400

◦Name three common of decomposers present in the soil

-Earthworms

-Fungi

-Bacteria

400

What does it mean by pastoral farming

-Farming that focuses on the production of animals and animal related products

400

What does it mean by crop rotation?

 Growing different types of plants in  different plots each year

500

◦Where can you find soil and water

-In the soil pore

500

◦When fertilizers are mixed with water, the water will break the fertilizer into mineral ions. What is the name of the mineral ion for nitrogen?

Nitrate ions (NO3-)

500

◦What is the main function of decomposers in the soil?

-Break down dead matter into nutrients that can be used by the plants.

500

What is commercial farming?

cultivation of products with the main focus of selling them for cash

500

Name three methods to improve crop yield

1.Crop rotation

2.Fertilizers

3.Irrigation

4.Control of competing organisms

5.Controlling pests and diseases

6.Efficiency gains through mechanization

7.Selective breeding

8.Controlling the crop environment

600

◦What are the organic contents in the soil?

-a mixture of living plants and animals and their dead remains

600

◦What is the chemical symbol for potassium

K

600

◦At what pH of the soil is suitable for NPK minerals?

Neutral

600

◦What is a subsistence farming?

-Cultivation and production of food to meet the needs of the farmers and their families

600

Name two challenges of food production 

1.An increasing world population needing more resources

2.Climate change affecting the availability of fertile land

3.Increasing settlement sizes reducing available farmland

4.Increases in the standard of living creating a demand for more food variety

5.Larger population impacting on the availability of water for irrigation

700

◦What are the mineral particles in the soil?

-a combination of rock fragments and other smaller inorganic (non-living) items

700

◦What is the chemical symbol for nitrogen

N

700

◦Can the pH of the soil influence the availability of mineral nutrients?

Yes

700

◦Define the word agriculture.

-cultivation of the soil for the growing of crops and the rearing of animals

700

◦List two disadvantages of intensive farming.

-Require high inputs to support the production

-Require high capital

-Environmental and ethical related issues (keeping animals in small and confined spaces)

800

◦Name the components found in soil.

-Mineral particles

-Organic content

-Air

-water

800

◦Name the three main nutrients present in fertilizer.

-Nitrogen

-Phosphorus

-Potassium

800

◦What is the pH range of mineral soils in arid region?

-pH 7 – pH 9

800

◦Name 4 benefits of high levels of organic matter content on the soil

-Increase the water-holding capacity

-Increase the air spaces in the soil

-Increase in the number of decomposer organisms

-Prevent the loss of mineral nutrients

800

◦What is intensive farming

Production of large amount of yield from small areas of land

900

◦Complete the sentence below.

Soil is a habitat for plants and other ____________ that grow within it.

Organisms

900

◦Name two factors to grow plants successfully.

-Availability of mineral nutrients

-Anchorage to hold the roots securely

-Supply of water

-Supply of oxygen around the roots

900

◦Name two major drivers of the soil pH.

-The type of parent rock

-The pH of water that flows into the soil

900

◦How does bacteria break down dead matter?

-Bacteria convert waste products into simple chemicals that can be used by plants

900

◦What is extensive farming?

Production of relatively small amount of yield from a large area of land

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