Environmental And Medical Issues Flashcards
What are causes of global warming?
- burning fossil fuels by humans increases green house gases like carbon dioxide in the atmosphere
- some scientists believe the rise of temperature is natural and has always happened
What are solutions to global warming?
- individually turn off appliances when not in use, walk and lobby the government
- set laws for factories to reduce energy and work together to reduce usage
- scientists research causes and consequences of climate change do we can understand and prevent it
What is waste pollution?
- Increase in waste that is not biodegradable or recyclable
- waste takes up space
- spreads disease
- releases dangerous chemicals
What is land pollution?
- littering
- pesticides
- leads to poor plant growth
- threatens animal habitats
What is air pollution?
- substances or chemicals released into the atmosphere threaten chemical balance of air
- causes acid rain
- smog
- burning fossil fuels
What is water pollution?
- contamination of bodies of water
- affects water quality
- hurts plants and animals
- bacteria that break down nutrients use up oxygen needed for fish
What are solutions to pollution?
- create less waste recycle as much as possible reduce packaging and reuse
- anti pollutant laws limit the amount of pollution and severe penalties on laws are broken
- use renewable and clean sources
- research ways to manufacture that waste less and are more efficient
What are renewable energy resources?
- wind power
- solar power
- wave power
- water power
- fertile land
- wood
What are advantages to renewable energy resources?
They will never run out and most provide clean energy which doesn’t cause pollution
What are disadvantages to renewable energy resources?
- Many are effective only in certain areas (wind,sun)
- can be more expensive
What are nonrenewable energy resources?
- coal
- oil
- gas
- uranium
What are advantages to nonrenewable energy resources?
Some can be recycled and are useful to humans for transport
What are disadvantages to nonrenewable energy resources?
- They are scarce
- once they are used up they cannot be replaced and will be gone forever
- many cause pollution
What are issues with non renewable energy resources?
- humans are reliant on non renewable energy sources
- if they are used at their current rate they will run out
- had an enormous impact and effect on the planet and human life
What is conservation?
- involves protecting and preserving natural resources and the environment for future generations
- renewable sources
- conserve energy
- walk or cycle rather than drive
- products are made from renewable sources