Lesson 6 - Sustainable Practice Flashcards
(18 cards)
What does ‘sustainable’ mean?
It means you can keep doing it over time without running out of resources.
Give an example of sustainable energy.
Solar power
Is drilling oil for petrol sustainable? True or False?
False
Drilling oil is not sustainable because it depletes finite resources.
What happens when we drill oil out of the ground?
We will eventually run out.
This indicates that oil is a non-renewable resource.
What is land terracing?
A method used for agricultural purposes to create flat areas on sloped land
How long has land terracing been used?
For 1000 years
Is land terracing harmful to the environment?
By itself, it’s not so bad for the environment
What happens when land terracing is done on a massive scale?
It causes serious damage to the environment that is difficult to fix in the future
What equipment is often used in large-scale land terracing?
Earthmoving equipment
Why are these things being done on a massive scale?
a. Increased population = more people to feed
b. Increased urbanisation (more cities) = less space for small-sized farms
c. More need for money = people growing cash crops”
what are cash crops?
growing huge amounts of food to sell instead of just growing enough for themselves
What does sustainable forestry involve?
Sustainable forestry involves constantly replanting trees in one area while you cut down trees in another, then rotating the logging from one area to the next.
What is sustainable forestry a way to make sure of?
Sustainable forestry is a way of
making sure that there are new trees being planted a long time before the others are cut down.
What are the 3 issues with sustainable agriculture?
- pests
- weeds
- Replanting crops in the same area every year
What are the 2 unsustainable solutions with sustainable agriculture?
- Use pesticides (chemicals) to kill the bugs
- Just keep using the same land over and over
What are the 2 sustainable solutions with sustainable agriculture?
- Biological pest control
- Crop rotation
What are the 2 issues with mining?
Mining is the definition of
unsustainable
- When we drill for oil that we burn as petrol, that oil is not coming back for millions of years
- That iron ore we dig out of the ground to turn into steel is not coming
Why are these problems still happening?
The answer is money.
Converting your farm to sustainable practices costs money in the short term. Most people only think about the short-term
