Food Production Flashcards
What Is Acid Rain?
Rain with a ph of as low as 3.
What greenhouse gas is released from Cars?
Nitrous Oxide
What is IntrAspecific Competition?
Competition between the same species.
What is inTERspecific Competition?
Competition between different species.
What is predatation?
When one organism captures and feeds of another.
How do Greenhouses increase yield?
Increases sunlight for photosynthesis, keeps pests out, optimal temperature for enzyme activity
What is DDT?
DDT accumulates in food chains as consumers eat large numbers of prey eating the pesticide meaning they die.
What are the negatives of a green house
Expensive to build
high matenence
Require a lot of open space
How greenhouses increase yield
increasing the rate of photosynthesis
What is it?
Ari
What is the greenhouse effect ?
Trapping of infared radiation best from the sun and trapping it in the earths atmosphere. Warming up the earth leading to global warming.
Give the simple steps of eutrophication
- mineral ions leach into river
- minerl ions in river cause algal bloom
- algal bloom blocks sunliught stopping aquatic plants from photosynthesising
- aquatic plants die
- increased bacteria decomposing dead aquatic plants
- reduced oxygen due to bacteria respiring
- fish and aquatic life die
What is a pesticide?
a chemical used to kill pests
What is intraspecific
Competition between the same species!
Write a word equation to represent what happens when carbon dioxide forms naturally acidic rainwater
Sulfuric acid + nitric acid= acid rain
Carbon dioxide + water = carbonic acid
What is an example of a natural pesticide
Spiders, onion spray, greenhouse
What is a fertiliser?
a chemical full of mineral ions that increase the growht in plants
How do you prevent leaching
Apply your selected fertilizer in small and regular amounts
what is bioaccumulation
the build up of harmful chemicals throughout the food chain.
