Water and Energy

Question 1

wind energy

Answer 1

doesn’t produce co2
running costs are low

shuts down in very strong/weak winds

Question 2

solar energy

Answer 2

renewable
no co2

don’t work when cloudy or at night
expensive

Question 3

hydroelectric energy

Answer 3

low cost
no co2
renewable

dams are expensive
reservoirs flood lands

Question 4

biomass

Answer 4

carbon neutral
reduces waste

lots of space
expensive
inefficient amount of energy produced

Question 5

oil

Answer 5

easy to transport
can be built anywhere with good transport link

co2 and other emissions
non-renewable

Question 6

hydrogen fuel cells

Answer 6

only waste is water
efficient

highly flammable

Question 7

coal

Answer 7

cheap
reliable

co2
sulfur dioxide
non-renewable

Question 8

nuclear energy

Answer 8

splitting of uranium atoms which generates heat to produce steam, which is used by a turbine generator to generate electricity

small amount produces a lot
small carbon footprint
cheap to run

produces radioactive waste
expensive to build
harmful
non-renewable

Question 9

Gas

Answer 9

light
easy to transport

co2
non renewable

Question 10

ground source energy

Answer 10

no pollution
pipework is underground

varies with seasons
expensive

Question 11

geothermal energy

Answer 11

no pollution
plants are long lasting

generates waste
difficult to find suitable site

Question 12

malaysia energy statistics

Answer 12

main source: petroleum, natural gas and coal
6% renewable

Question 13

reservoirs and dams

Answer 13

flood control
hydropower
irrigation

expensive
take a long time
blocks water to other regions

Question 14

wells and bore holes

Answer 14

long term
easy to maintain
cheap

contaminated
impacts wetland systems

Question 15

desalination

Answer 15

drinking
irrigation
safe

contamination
pollution
salt is excess

Question 16

cloud seeding

Answer 16

crop damage reduction
dry place becomes habitable
weather regulation

natural balance
harmful chemicals
expensive

Question 17

ehtiopia statistics

Answer 17

117.9 million
4 fertility rate
65 life expectancy
943.97 USD gdp per capita
42% access to clean water
majority is hydropower

Question 18

positives of ethiopia dam

Answer 18

Generating electricity

Temper destructive seasonal floods in Sudan

Boost food supplies in Ethiopia with irrigation water

Extend the lifespan of other dams downstream on the Nile by trapping sediment.

Question 19

negatives of ethiopia dam

Answer 19

95% of Egypt’s farmland is found near the Nile and building the dam and changing the hydrology will impact millions in Egypt and Sudan

Costs; 5 billion

Question 20

why build ethiopia dam

Answer 20

100 percent will have access to electricity
water storage and hydropower energy
but most of egypt’s farmland is next to the nile so will effect them

Question 21

One WaSH ethiopia why

Answer 21

Only about 3% of water resources are used, of which only about 11% (0.3% of the total) is used for domestic water supply.

Improves water and sanitation – government funding to make water available

One WaSH programme started in 2014

Prioritizes rural communities that experience droughts, malnutrition, and waterborne diseases.

Question 22

One WaSH ethiopia impacts

Answer 22

Improved wellbeing of rural and urban communities

Benefitted 4.3 million

Negative: there are 117.9 million people in Ethiopia which means 0.03% of them benefitted.

started 2014 and ended 2019 - and in that time death rates decreased by 2%