Criteria 7

Question 1

Biggest human impacts on the earth

Answer 1

Pollution
Environmental degradation
Deforestation
Loss of biodiversity

Human impacts have affected all of the earth 4 biospheres

Question 2

Pollution

Answer 2

Introduction of contaminants into the natural environment that causes adverse changes.

Chemical: Solid, Liquid, Gas

Energy: Heat, Light, Noise

Question 3

Deforestation and Habitat destruction

Answer 3

Forests protect against temp change and desertification.

300 billion tonnes of co2 is held in the earth’s forests

Soil loss after the removal of forests is considerable.
Increased runoff
- water pollution
- the destruction of ecosystems
Erosion
Silt accumulation
Aridity

Question 4

Introduced species

Question 5

Tragedy of the commons

Question 6

Ecological footprint

Answer 6

It measures the biologically productive area needed to provide for everything that people demand from nature

Question 7

Carbon footprint

Answer 7

A carbon footprint is the total greenhouse gas (GHG) emissions caused by an individual, event, organization, service, place or product, expressed as carbon dioxide equivalent

Question 8

Carbon miles

Answer 8

If your ingredients have come a long way, they may have a heavy carbon footprint. That’s especially likely if they arrived by air – due to the high climate impact of planes. After all, flying in food typically creates around 10 times more carbon emissions than road transport and around 50 times more than shipping.

Question 9

Global hectare

Answer 9

A global hectare is a biologically productive hectare with world average biological productivity for a given year.

Question 10

Overshoot day

Answer 10

Earth Overshoot Day marks the date when humanity has used all the biological resources that Earth regenerates during the entire year.

Question 11

Ecosystem services

Question 12

Natural capital

Answer 12

Can be renewable or non renewable

Question 13

Provisioning Services (Ecosystem values)

Answer 13

Products from the ecosystem such as food, water, wood, fibre, and genetic resources.

Question 14

Ecological services - supporting services

Answer 14

Services necessary for all other ecosystem services

• Soil formation
• Nutrient cycling
• Primary production

Question 15

Ecological services - Regulating services

Answer 15

• Climate
• Disease
• Water regulation
• Water purification

Question 16

Cultural services

Answer 16

• Spiritual / religious
• recreation / tourism
• aesthetic
• education

Question 17

Aquaculture

Answer 17

• Impact on benthic organisms
  Whatever food that the fish do not eat fall through the in water tanks to the bottom of the oceans, that have a negative effect on the benthic organisms down below - This can lead to dead zones
• Decline in water quality
• Impact on food webs

Question 18

Virtual Water

Answer 18

Referred to as unseen water or hidden water, is the water used in manufacturing of a product or the water imbedded in it.
Clogging up waterways - silt

Question 19

Industrial and sewage spills

Answer 19

BOD - the amount of dissolved oxygen consumed by microorganisms as they consume and decompose organic matter

Question 20

Agriculture

Answer 20

Allowing weed escapes
Ignoring the window of control
Applying herbicides at reduced volumes
Failing to diversify crop rotations 
Lowering seed rates
Existing uncompetitive strands