8 MARKERS

Question 1

CLIMATE CHANGE
HUMAN ACTIONS
FIVE

Answer 1

• Greenhouse gases
• Enhanced greenhouse gas effect from Industry and farming (CO2 & Methane)
• Deforestation
• CFC’s - these can ONLY be created by humans

Question 2

CLIMATE CHANGE
NATURAL CAUSES
FOUR
& 2 Signs

Answer 2

• Volcanic eruptions - plumes of ash reflect solar energy
• Asteroid cooling theory - dust particles from asteroids similar effect
• Sunspot theory - more solar energy
• Orbital change theory - (Milankovitch) Either oval orbit or changing tilt to vary seasons

Question 3

Why are tropical rainforests more likely to have high biodiversity than a deciduous wood?
What is one reason the biome might be levelling out between the two?

Answer 3

• Perfect conditions for rapid photosynthesis - high temperature, high rainfall.
• Plants grow quickly
• Animals have more to feed on and they thrive.
• Plants and animals decompose quickly which means fast nutrient cycling.
• Deciduous woodland have the opposite - not much sunlight, slow growth, animals have less to feed on.
• Deciduous wood decompose slower - slower nutrient cycling.
  HOWEVER
• Deforestation of tropical rainforest is impacting biome, whereas deciduous woodlands are being conserved better.

Question 4

INDIA / MUMBAI CASE STUDY
What is India exposed to re trading thanks to its location?

Answer 4

• Position in Indian Ocean - Close contact with & Trade opportunities on West (Middle East, Africa Europe) and on East Coast (SE Asia).

Question 5

India’s coastline - how does it help?

Answer 5

Huge coastline - helps with trade

Question 6

How did colonialisation affect India in terms of what it produces?

Answer 6

Colonialisation exploited India’s economy so they became a producer of CHEAP RAW MATERIALS.

Question 7

Why is development led by NGO’s more effective?
FOUR

Answer 7

• NGO development focuses on local needs, they consult the locals.
• Their approach is more affordable for poorer communities/ less construction.
• Not introducing overly complex tech that the locals don’t know how to use or repair.
• These projects have less of an impact on the environment as they are smaller scale.