Plant Growth
Agriculture
Increasing Yields
Soil Cycle
General Knowledge
200
What is the function of water to plant life?
Accept one of the following:
Allows for the transportation of nutrients through the plant
Solvent
Supports turgidity (swelling of cells)
Absorbs nutrients
200
A family in rural India grows rice to feed themselves.
What is arable subsistence farming
200
Why are reasons we need to increase crop yield?
Any from:
Increase population needs more resources
More housing = less farm space
Increased standard of living (variety of food)
Increase populations reduces water supply for irrigation
200
What are the 4 main components in soil?
Minerals
Organic matter
Air
Water
200
What is the term for all the living organisms in an ecosystem?
What is the biotic components?
400
What are the main minerals needed by plants?
Nitrogen, phosphorus and potassium
400
A large scale wheat farm in the USA uses tractors to harvest crops for sale in national and international markets.
Commercial, arable, extensive.
400
Benefits of crop rotation: List 2
Prevents build up of disease in soil
Less pest species that attack that plant
Increase in nutrients in the soil
400
What is weathering
The breaking down or dissolving of rocks
400
What is the largest planet in our solar system?
Jupiter
600
What pH level do most plants thrive in? Answer to one decimal point if needed.
6.2 - 7
600
A diary farm in the Netherlands keeps high-yield cows, uses automated milking machines, and sells milk and cheese to supermarkets.
Commercial, pastoral, intensive.
600
List 2 advantages of inorganic fertiliser (from PPT)
Manufactured if high demand,
Easier to store.
600
What is erosion
Materials are worn away and transported
600
What trophic level describes an organism that feeds directly on producers like plants?
What is a primary consumer?
800
Carbon dioxide has two jobs. They boost _____ ______ by increasing the rate of ________, which spurs growth, and they reduce the amount of water crops lose through ___________
Crop yield, Photosynthesis, Transpiration
800
A Maasai community in Kenya raises cattle on large areas of land, moving them seasonally to find fresh pasture.
Subsistence, pastoral, extensive.
800
Environmental control is listed as a way to increase crop yield. What conditions are controlled? List 4 (from PPT).
Any 4 from:
Temperature
Light level
Humidity
Day length
Water
800
What is onion skin weathering?
When it is very hot during the day and very cold at night, the surface of the rock expands and then contracts frequently until it eventually breaks off.
800
In economics, GDP stands for...
Gross domestic output
1000
At high temperatures, enzymes are _______.
Denatured
1000
A family farm in Egypt along the Nile grows wheat and vegetables, but also raises chickens and goats, using irrigation for crops and manure for soil fertility. Surplus is sold.
Mixed, subsistence and commercial
1000
Eggplant
1000
List the 5 layers of the Soil Profile
Humus
Topsoil
Subsoil
Weathered rock
Bedrock
1000
Which two countries share the longest international border?
The USA and Canada