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**Unit 3 Living things in their environment - Coggle Diagram
**Unit 3 Living things in their environment
Food chain
Producers
The first organism in the food chain is always is a plant.
consumers
Animals make food using sunlight. the consume （eat) plants or other animals.
predator
Predator is only eat plants or other animals.And the predator is food chain the last one.
Carnivore
only eat meat
Herbivore
only eat plant
Omnivore
eay plant and meat
Pollution
Water pollution
Some human activities add harmful thing to water
Air pollution
Some humans activities add harmful gases to the air.
Energy resources
Fossil fuels
Fossil fuels are non-renewable energy resources.
Coal ,oil and natural gas are fossil fuels.
They are formed millions of years ago.
They were produced when plants and microscopic organisms died in swamps and bogs.
Renewable energy resources
There are some energy resources that will not run out .
Wind, plant, energy from the sun they are all renewable energy resources.
Humans and food chains
Hunter-gatherers
They gathered and ate berrie ,seeds ,leaves and roots from plants that grew where they lived.
How farming affects food chain
The habitat and their food supply is destroyed.
Farmers
Most of the food that we eat come from farms and gardens.
Human activities and food chain
Fishing
When we take fish from the sea , we are taking away food that another animal could eat.
Introducing new species
Possum were introduced from Australia into New Zealand to be bred for their fur.
Ozone depletion
The 'hole' in the ozone layer
In 1985, scientists discovered that there was less ozone than there should be over the Antarctic, especially in the Antarctic spring.
What causes the ozone hole
Gases called CFCs caused the problems with the ozone layer.
They react with ozone and break it down.
Ozone
Ozone is a gas
The ozone layer protects organisms on the Earth from harmful ultraviolet radiation.
Conservation
Reducing pollution
We have stopped using CFC-this will allow the ozone layer to recover.
Preserving habitats
We must try not to destroy the habitat of plants and animals.
Each species has adaptations that help it to live in a particular habitat.
Looking after the environment so that animals and plant can live there.
Adaptations
Each kind of living organism has adaptations that help it to live in a particular habitat.
The place where an organism lives is called its habitat.