Climate Change

Question 1

Biosphere

Answer 1

all parts of the Earth’s surface and atmosphere where living things exist.

Question 2

Hydrosphere

Answer 2

the mass of water lying over, on or under the surface of the Earth as oceans, seas, lakes and rivers.

Question 3

Atmosphere

Answer 3

This consists of gases, mostly nitrogen, oxygen and carbon dioxide

Question 4

Lithosphere

Answer 4

This consists of rock. It is the cold, brittle and elastic outermost shell of our planet.

Question 5

How do the four spheres interact?

Answer 5

Water shapes the land through erosion and sedimentation.
Water supports life and is essential for ecosystems.
Land provides habitats and resources for living things.
Air and living things exchange gases like oxygen and carbon dioxide.

Question 6

Gases contributing to the Greenhouse effect and how are they produced

Answer 6

Carbon dioxide:
burning of fossil fuels, deforestation and industrial processes.
Methane:
Released from agricultural activities, waste decomposition.
Nitrous oxide:
agricultural activities, industrial processes, burning of fossil fuels.
Water vapour

Question 7

Greenhouse Effect steps

Answer 7

1. solar radiation passes through atmosphere.
2. some is reflected out by surface
   3 some is absorbed and warms up
   4 radiation formed called infrared out of atmosphere
   5 infrared also absorbed by greenhouse molecules ad warms earth.

Question 8

how has climate change impacted biodiversity- examples

Answer 8

Melting glaciers and ice caps
Sea-level rise

Question 8

Enhanced Greenhouse effect

Answer 8

an increase in natural greenhouse effect caused by human activity

Question 8

sustainable ecosystems

Answer 8

diverse and provide for its organisms

Question 8

impacts of eghe

Answer 8

climate change/global warming

Question 9

evidence for climate change

Answer 9

-global temp is rising
-oceans are getting warmer
-sea level rising
-ocean acidification
-decrease in arctic sea ice
-ice sheets shrinking
-snow cover decreasing
-extreme weather events increase

Question 9

explain Ocean Global Conveyor Belt

Answer 9

driven by ocean currents around the world.
deep currents stat at poles, where seawater becomes denser and sinks.
any increase in global temp affects density and lowers salinity.
ice acts as insulator to underlying water.

Question 10

greenhouse effect impacts

Answer 10

Rising temperatures
Rising sea levels
Ocean acidification
Biodiversity loss

Question 10

climate change def

Answer 10

long term shifts in temp and weather patterns by humans

Question 11

respiration

Answer 11

releases carbon dioxide into atmosphere
available for plants for photosynthesis

Question 12

carbon cycle: what is carbon used for in living things?

Answer 12

to build biological tissue

Question 12

carbon cycle: how decomposers return carbon to atmosphere:

Answer 12

break down matter, release carbon, respiration

Question 13

carbon cycle: where carbon in coal and oil came from

Answer 13

fossils broken down

Question 14

ecosystem services

Answer 14

all the things the environment does for us

Question 15

types of ecosystem services

Answer 15

support services: create and replenish
provisioning: raw materials
regulating: moderating
cultural: activities, discovery

Question 16

what is required for an ecosystem to function properly?

Answer 16

biodiversity

Question 17

solutions for a sustainable future

Answer 17

rewild planet
conserve what we have
increase sustainable loving acroos world
increase renewable energy
regenerative agriculture
sustainable fishing

Question 18

photosynthesis

Answer 18

take in CO2, cmbine with hydrogen from water, turns into glucose. incorperates carbon into living things.

Question 19

human contribution to eghe

Answer 19

burning fossil fuels
releasing chemicals into atmosphere
deforestation
agriculture, development