U8S2 Environment And Medical Issues Flashcards
(40 cards)
Conservation
The act of protecting and preserving natural resources and environment
Creation
The act of creating the universe or the universe which has been created
Embryo
Fertilised egg in the first eight weeks after conception
Environment
The surroundings in which plants and animals live on and which they depend to live
Global warming
The increase in the temperature of the earths atmosphere (thought to be caused by the greenhouse effect)
Infertility
Not being able to have children
IVF
The method of fertilising human egg in a test tube
Natural resources
Naturally occurring materials, such as oil and fertile land, which can be used by humans
Organ donation
Giving organs to be used in transplant surgery
Stewardship
Looking after something so it can be passed on to the next generation
Surrogacy
An agreement with my woman better child on behalf of another woman
Where an egg is donated and fertilised by the husband through IVF and then implanted into the wife’s uterus
Artificial insemination
Injecting semen into the uterus by artificial means
Give 2 causes of global warming
- Many scientists believe burning fossil fuels increases greenhouse gases such as co2
- Others say the rise in temperature is natural
Effects of global warming
- Ice melts in polar regions
- Some hotter areas suffer drought whereas others suffer from rain
- Increase in extreme weather
- Some animals die
Solutions to global warming (3)
- Individually- turn off electrical appliances when not in use, walk rather than use vehicles
- Government- set laws for factories to reduce energy, work to reduce energy usage
- Research into the causes and consequences of climate change so we can prevent it
Name the 4 types of pollution
- Waste
- Land
- Air
- Water
Discuss waste pollution
Increase in waste that is not biodegradable or recyclable. Waste takes up space and spreads diseases and releases chemicals
Discuss land pollution
Land or soil pollution leads to poor plant growth and threatens animal habitats. Example: littering and pesticides
Discuss air pollution
Substances or chemicals released into the atmosphere threaten the chemical balance of the air which leads to acid rain.
Discuss water pollution
Contaminated rivers lakes and oceans. This affects the water quality and the plants and animals that live there. Eutrophication, sewage
4 solutions to the 4 types of pollution
- Create less waste- recycle as much as possible.
- Alternative energy sources- look for cleaner sources e.g. Wind power
- Government action- anti pollution laws to limit the amount of pollution
- Alternative manufacturing methods- research methods of manufacturing that produce less waste
Give an advantage and disadvantage of renewable resources
✔️ They will never run out and provide clean energy
✖️ Only work in certain areas
Give an advantage an a disadvantage of no renewable resources
✔️ Some e.g. Metals can be recycled and are useful for humans
✖️ They are scarce. Once they are used up they cannot be replaced
Reasons for using non renewable resources (3)
- Why should we think of the future now- we should make the most of life now
- It is more expensive and harder to use renewable sources of energy
- Not all renewable sources of energy are possible in certain places so we have to use what we have