How are seeds of plants formed?
By fertilization
By germination
By dispersal
By pollination
What are legumes?
Substance that kills fungi
Substance used to kill insects and pests
Substance used to remove weeds
The main crops that produce seeds for food
Pests are killed by:
Fertilizers
Pesticides
Manure
Compost
Why are fertilizers added to soil?
To add the water content of the soil
To distribute the minerals in the soil
To replace the minerals that have been taken away in the crop
To kill pests and insects
Who introduced organic farming?
Rachel Carson
Paul Muller
Charles Townsend
Richard Abegg
In which way can weeds negatively affect crop plants?
Crop plants get less resources
Crop plants grow less
Crop plants get killed
Crop plants grow very close to each other.
How is fungi killed ?
By insecticides
By fertilizers
By pesticides
By fungicides
Effectiveness of DDT was discovered by:
What is GM?
Genetic Modification
Garbage mover
Gaseous mixture
Grand matriarch
The amount of carbon dioxide in the air in a glass house can be increased by:
By pumping in extra carbon dioxide
By having blinds
By having ventilators
By adding more fertilizers to the soil
