Preciouse Resourses

Question 1

What is mining

Answer 1

the process of removing mineral ore from the ground

Question 2

What is a mineral ore

Answer 2

a substance that contains minerals of values, that can be obtained by mining

Question 3

Examples of mineral ore

Answer 3

Mineral ore=Metal Bauxite=Aluminium. Galena=Lead
Sphalerite=Zinc. Hematite=Iron. Pentlandite=Nickel
Chalcopyrite=Copper

Question 4

What is underground mining and open cut mining

Answer 4

Open cut mining-a method of mining mineral ores that are close to the surface
Underground mining- a method of mining mineral ores that are deep below the surface

Question 5

Steps of extracting minerals from the ground

Answer 5

Concentration:The useful rock taken from the ground is a mixture of the useful mineral ore and unwanted sand
Reduction:A number of chemical reactions because the mineral ore is a pure substance
Purification:Most metals obtained from the reduction process still contain impurities.

Question 6

What are the different energy of black coal and brown coal

Answer 6

Brown coal: a form of coal formed from peat compressed over millions of years

Black coal: a harder, drier form of coal than brown coal, formed from peat compressed over millions of years

Question 7

How are fossil fuels formed

Answer 7

From remains of plants or animals

Question 8

What are common types of fossil fuels

Answer 8

Coal,oil and natural gases

Question 9

Why do people use non-renewable energy sources

Answer 9

Non renewable energy:something that can not replaced in a short time eg fossils fuel ,diamonds, fossils fuel such as coal,oil and natural gas . It can take thousands of years to grow back

Question 10

How do fossil fuels contribute/impact global warming (know three reasons)

Answer 10

Global warming: the observed rise in the average near-surface temperature of the Earth

When fossil fuels are burned they release carbon dioxide into the atmosphere.

Question 11

What is the greenhouse effect

Answer 11

Greenhouse effect: a natural effect of the Earth’s atmosphere trapping heat

Question 12

What is renewable energy

Answer 12

Something you can replace in a short period of time

Question 13

What is black water

Answer 13

Waste water eg toilet water (urine and fecieces)

Question 14

What is grey water

Answer 14

Home water eg laundry, dish and shower water

Question 15

How does distillation work

Answer 15

When a liquid mixture is heated, the liquid with the lower boiling point evaporates (becomes a vapor), leaving behind the liquid with the higher boiling point

Question 16

How is soil created

Answer 16

When dirt gets wet from floods or rivers creating soil

Question 17

What is deforestation

Answer 17

Deforestation is the permanent destruction of forests in order to make the land available for other uses.

Question 18

What is salinity

Answer 18

The saltiness of one or another thing

Question 19

Can we reuse black or grey water

Answer 19

GREY WATER: If we use earth friendly cleaning product then we can reuse grey water but we can’t reuse black water because it is not filtered

Question 20

What role does soil play in the environment

Answer 20

Soil carries water and nutrients taking a big part in our environment

Question 21

Why are plants so important to soil

Answer 21

The roots of the plants give stability to soil eg if water passed through the soil would not be affected

Question 22

What is the water table and what happens to the water table during deforestation

Answer 22

The water table is the level below which the ground is saturated with water.
And the water table will stay in one place because it can’t contained anymore water

Question 23

How does distillation work

Answer 23

When a liquid mixture is heated, the liquid with the lower boiling point evaporates

Question 24

How is soil created

Answer 24

When dirt gets wet from floods or rivers creating soil

Question 25

What is deforestation

Answer 25

Deforestation is the permanent destruction of forests in order to make the land available for other uses.

Question 26

What is salinity

Answer 26

The saltiness of one or another thing

Question 27

Can we reuse black or grey water

Answer 27

GREY WATER: If we use earth friendly cleaning product then we can reuse grey water but we can’t reuse black water because it is not filtered

Question 28

What role does soil play in the environment

Answer 28

Plants carry water and nutrients taking a big part in our environment

Question 29

Why are plants so important to soil

Answer 29

The roots of the plants give stability to soil eg if water passed through the soil would not be affected

Question 30

What is the water table and what happens to the water table during deforestation

Answer 30

The water table is the level below which the ground is saturated with water.
And the water table will stay in one place because it can’t contained anymore

Question 31

Common examples of renewable energy are sources are wind,biomass,solar and hydro-electricity how do they work and what are there advantages and disadvantages

Answer 31

HOW SO THEY WORK
Biomass-A biomass-fired power plant produces electricity and heat by burning biomass in a boiler
Solar-it converters sunlight into a direct current
Hydro-electricity-The water is held behind a dam, forming an artificial lake, or reservoir.