ELSS 4

Question 1

INTER DEPENDACE

Atmosphere. 1

Answer 1

• greenhouse affect= warming temp due to long wavelength radiation absorbed = evaporation and convective rainfall

Question 2

INTER DEPENDACE

Oceans 2

Answer 2

• carbonation occours, weathering products enter the ocean via precipitation, availible for photosynthesis and shells for marine life
• atmospheric co2 influences sea temp = thermal expansion and melting of glaciers

Question 3

INTER DEPENDACE

vegetation 3

Answer 3

• photosynthesis = glucose product from carbon ( co2 ) and hydrogen from water
• increased rainfall increased run off = soil erosion and carbon leaving the system
• less carbon in system = lack of nutrients = risk of desertification = decreases transpiration rate due to lack of growth

Question 4

INTER DEPENDACE

Cryosphere 2

Answer 4

• increased co2 levels in atmosphere means greenhouse affect occours = melting of cryosphere, more sea surfaces for plyoplankton = increased photosynthesis
• permafrost melting = organic matter growing and oxidisation of peat = releced co2

Question 5

REMOTE SENSING

what is it and 2 types and why useful

Answer 5

• process of detecting and monitering the physical characteristics of an area by measuring its reflected and emmited radiation

passive = no emmissions sent absorbs radiation
active = sends out own emmisions

useful = large area coverage, can be anaylised and interpreted

Question 6

GIS

what is it

Answer 6

• intergrated computer tools for gathering, storing and processing geographical data that can be layered on a map

Question 7

NASA

what are the 4 things that it measures

Answer 7

• snowcover
• watervapour
• vegetation
• chlorophyll

Question 8

NASA -

3 satelites and what they do

Answer 8

ICEsat2 - provides power and orbit control for ATLAS ( european satellite)

GoSAT
- observs greenhouse gasses = co2 and methane

landSAT - tracks the amazon deforestation