Climate Change

Question 1

What is needed to sustain life on earth?

Answer 1

A hydrosphere with water.

Question 2

Is biofuel a fossil fuel or not?

Answer 2

It is not

Question 3

What process occurs that prevent the earth from retaining too much heat in the atmosphere?

Answer 3

Solar radiation reaching the earth’s atmosphere is reflected back into space.

Question 4

Name a disadvantage of renewable energy.

Answer 4

It is difficult for renewable energy sources to generate electricity on the same large scale as other fuels.

Question 5

What does climat change do?

Answer 5

It amplifies existing social, political and economic tensions.

Question 6

Define biofuels

Answer 6

These are combustible substances made from biomass.

Question 7

Define the greenhouse effect.

Answer 7

The. Way in which heat is trapped close to the earth’s surface by gases.

Question 8

Define carbon capture and storage

Answer 8

The process of removing carbon from the atmosphere and trapping it underground.

Question 9

What is the product of burning fossil fuels?

Answer 9

Heat and light energy

Question 10

What is the feedback loop

Answer 10

A cycle of events in which the outcome of an event affect the initial event.

Question 11

What is a glacier?

Answer 11

a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles?

Question 12

What does the axial tilt cause?

Answer 12

Causes almost all the seasonal changes on earth.

Question 13

What does an increase in global temperature have on the earth?

Answer 13

Rising temperatures have an affect on rising sea levels as temperatures rise ice melts causing sea levels to rise.

Question 14

Why should carbon emissions be reduced?

Answer 14

This is because carbon emissions air the greenhouse effect in the atmosphere where heat from the sun cannot be radiated back into space because of carbon and greenhouse gases.

Question 15

How can global warming lead to malnutrition?

Answer 15

As global warming increases food production is decrease, this cause by high temperatures that are causing the water from the sound to dry and plant and crops cannot receive enough water to survive. If the plants and crops die food production will decrease causing malnutrition and hunger or starvation.

Question 16

What is the difference between renewable energy sources and non-renewable energy sources?

Answer 16

Renewable energy sources are energy sources that can constantly replenish themselves such hydro-energy, solar energy and wind energy.

Non renewable energy sources are energy sources that are finite( resources deplete), examples include:
Fossil fuels.

Question 17

What are two disadvantages of renewable energy sources?

Answer 17

It is difficult for renewable energy sources to to produce electricity on the same scale as other fuels and renewable energy can cost a lot in the beginning.

Question 18

Why is it bad for the environment when fossil fuels are burnt?

Answer 18

This is because coal is non-renewable and when it is burnt greenhouse gas emissions occur, this causes an increase in temperature globally which changes climate patterns overall this pollutes the environment.

Question 19

Define fossil fuels

Answer 19

A group of energy sources that were formed from ancient plants and organisms during the Carboniferous period approximately 362 to 286 million years ago.

Question 20

How is electricity made?

Answer 20

Using a source of energy(fossil fuel), the energy coming from the source is released in the form of heat, which is used to boil water which will take the form of steam, that propelled turbines, which spin generator coils and this generates electricity.

Question 21

What is coal

Answer 21

Coal is a black or dark brown combustible rock made primarily from carbon.

Question 22

How was coal formed?

Answer 22

When plants died in swamps millions of years and got buried under water and dirt, the high hear and pressure turned the dead plants into coal

Question 23

Define combustion

Answer 23

The process where a substance burns in the presence of Oxygen, giving off heat and light energy in the process.

Question 24

Define the greenhouse effect

Answer 24

A natural process that prevents the earth from retaining too much heat in it atmosphere

Question 25

Paying close attention to the greenhouse effect what type of gases trap extra heat and cause the earth’s temperature to rise?

Answer 25

Greenhouse gases.

Question 26

Define the word Finite.

Answer 26

There is a limited amount of a certain resource

Question 27

What is renewable energy

Answer 27

Energy that is generated from natural sources that natural replenish and never run out.

Question 28

What are biofuels

Answer 28

These are combustible fuels created from biomass

Question 29

What are first generation bio fuels?

Answer 29

These are biofuels that are produced from food crops.

Question 30

What are second generation biofuels?

Answer 30

These are biofuels that are produced from cellulosic(containing cellulose) materials such as wood and grasses and the inedible parts of plans.

Question 31

What are third generation biofuels?

Answer 31

These are biofuels produced using the lipid production from algae.

Question 32

Define carbon capture and storage?

Answer 32

The removing of carbon from the atmosphere or from the burning of fossil fuels and trapping it underground.

Question 33

Décrive the feedback loop

Answer 33

This is when ice caps melt as a result of warming ocean water since the ice caps melt there will be less ice to reflect the sun’s heat which means more heat will be absorbed, which will again lead to ice caps melting. This loop will repeat itself continuously.

Question 34

What do rising sea levels threaten?

Answer 34

They threaten low lying coastal areas.

Question 35

Will food production increase as climate change increases? Explain why this will happen?

Answer 35

No Food production will not increase as climate change increases because, climate change leads to an increase in temperatures which will lead to more moisture evaporating from the soil, and this way crops cannot grow.

Question 36

What does a planet need for habitation to occur?(5)

Answer 36

Temperature
A Hydrosphere with water
An atmosphere
Biosphere(for energy)
Lithosphere(for nutrients)