6424533
Description
Mind Map by Ilham Rushdie, updated more than 1 year ago
|
Created by Ilham Rushdie
about 8 years ago
|
|
Sources of Food
- Protection of Crops
- Biological
Control: Natural
Method eg.
Introduce
natural
predators PROS:
Environmentally
Friendly CONS:
Imbalance of
ecosystem
- Biological
Control: Natural
Method eg.
Introduce
natural
predators PROS:
Environmentally
Friendly CONS:
Imbalance of
ecosystem
- Plants
- Carry on
Photosynthesis
to make food
- Carry on
Photosynthesis
to make food
- Soil
Conditions
- Fertilisers
- PROS: adds nutrients
to the soil, plants
grow faster
- CONS:
Contamination of
water sources ,
negative impact
on aquatic life,
algae bloom
- CONS:
Contamination of
water sources ,
negative impact
on aquatic life,
algae bloom
- PROS: adds nutrients
to the soil, plants
grow faster
- pH
- Indicates acidic -> taste sour
or alkaline ->taste bitter
- Test
- Litmus Paper acidic :
Blue turns red
alkaline: Red turns
blue
- Universal Indicator Acidic: RED
Alkaline: Blue/Purple
Neutral:Green
- Data Logger
Acidic: pH <7
Alkaline pH >7
Neutral ph 7
- Litmus Paper acidic :
Blue turns red
alkaline: Red turns
blue
- Indicates acidic -> taste sour
or alkaline ->taste bitter
- Fertilisers
- Slash-and-burn: A
method to clear the
land PROS: Cheap
and easy method
CONS: -Cause haze
and air pollution -Eye
Irritation and
breathing problem -
Forest Fires - Soil
Erosion - Loss of
Natural Habitats
which lead to
extinction of wild life
- Crops
- Need water, air
and sunlight
required for growth
regulated by plant
hormones also
used in Ripening of
fruits and weed
killers
- Need water, air
and sunlight
required for growth
regulated by plant
hormones also
used in Ripening of
fruits and weed
killers
Media attachments
Want to create your own Mind Maps for free with GoConqr? Learn more.