Chapter 12 Interactions With The Ecosystem (12.1) How Do Our Actions Impact The Environment

Question 1

4 actions that impact the environment negatively

Answer 1

1. wasting food
2. using more electricity
3. using more water
4. creating excessive waste
   (FEW E.W.)

Question 2

wasting food

Answer 2

growing crops and livestock for food
requires water, energy, minerals in the soil and other resources on Earth (mew)
wasting food is essentially wasting Earth’s limited resources

Question 3

using more electricity

Answer 3

electrical energy in Sg is obtained by burning natural gas (limited resource which can run out)
more fuels burnt -> more carbon dioxide given off -> climate change

Question 4

using more water

Answer 4

less than 1% of Earth’s water is considered fresh water (limited resource)
fresh water depleted quickly

Question 5

creating excessive waste

Answer 5

improper disposal of waste pollutes air, water and land

can poison/kill organisms which consume it

Question 6

4 ways to conserve the environment and what does it mean

Answer 6

it means using only the amt of Earth’s resources that we need
3 ‘r’
FCE
1. reducing use of fossil fuels
2. reducing consumption
3. introducing environmentally practices
4. reforestation

Question 7

reducing the use of fossil fuels

Answer 7

take public transport/walk instead of taking a car

use energy-efficient appliances

Question 8

reducing consumption

Answer 8

minimize use of paper
reuse items by recycling
reducing consumption -> reduce need for raw materials such as wood -> reduces deforestation

Question 9

introducing environmentally friendly practices

Answer 9

initiates such as “Bring Your Own Bag” encourages us to be more environmentally friendly
-> reduce the emission of greenhouse gases & effects of climate change

Question 10

reforestation

Answer 10

protects soil which stores carbon

when plants take in carbon dioxide during photosynthesis, they help to store carbon & reduce amt of CO2 in the air