Climate Change

Question 1

a term that describes how natural gases
in the earth’s atmosphere reduce the
amount of heat escaping from the earth
into the atmosphere

Answer 1

The Greenhouse Effect

Question 2

How do Greenhouses Work?

Answer 2

greenhouses work by trapping heat from
the sun

Question 3

The Greenhouse gases are:

Answer 3

Carbon dioxide
o Methane
o Nitrous Oxide
o Ozone
o CFCs

Question 4

one of the primary greenhouse gases,
comprising of 54% of all greenhouse gases

Answer 4

Carbon Dioxide

Question 5

Carbon Dioxide comes from:

Answer 5

Human respiration
Burning of fossil fuels
Burning of forests
Industrialization

Question 6

Nitrous oxide comes from

Answer 6

Human activities like agriculture, wastewater management, fuel combustion and industrial processes

Question 7

Nitrous oxide accounted how many percent

Answer 7

6%

Question 8

Methane accounted how many percent and how long does it stay in the atmosphere

Answer 8

12-20%; 10-12 years

Question 9

found to be preset on the top surface of the
stratosphere, around 30 miles higher than
the ground surface

Answer 9

Ozone

Question 10

Ozone are found around ______ higher above the
______, the ozone behaves as a
greenhouse gas by trapping heat

Answer 10

12 miles, trophosphere

Question 11

a gas that depletes the ozone layer and
causes greenhouse effect

Answer 11

Chlorofluorocarbon

Question 12

Sources of CFCs

Answer 12

Aerosol spray, cleaning solvent, coolants in the fridge

Question 13

21% of the gases

Answer 13

CFC

Question 14

identifiable change in the climate of Earth
as a whole that lasts for an extended period
of time (decades or longer)

Answer 14

Global Climate Change

Question 15

a large part of climate change
▪ the increase in temperature of Earth

Answer 15

Global warming

Question 16

the rate of the increase in temperature is
increasing which means that in the next
_______, the average temperature is
likely to increase by more than _____

Answer 16

100 years; 1℃

Question 17

if we’re unable to reduce our emissions,
scientists believe that climate change could
lea to the deaths of more than ______
people around the globe every year and
force _____ million in o poverty by _____

Answer 17

250,000; 100; 2030

Question 18

heat stress and other heat related health
problems are caused directly by very warm
temperatures and high humidity

Answer 18

Human health

Question 19

What Causes Earth’s Climate to Change?

Answer 19

Changes in the Atmosphere
1. Natural Processes
• volcanoes
• tectonic plate movement
• changes in the sun – energy of the
sun is not constant
• shifts in Earth’s orbit
2. Human Activities
• any activity that releases
“greenhouse gases” into the
atmosphere

Question 20

great way to be more
green

Answer 20

Saving electricity

Question 21

the biggest effort so far which was adopted
in 1997 and went into effect in 2005

Answer 21

Kyoto protocol

Question 22

By the end of 2009, how many countries signed?

Answer 22

187 countries

Question 23

Paris agreement is what?

Answer 23

an agreement within the framework of the
United Nations Framework Convention on
Climate Change (UNFCCC)

Question 24

What is the aim of paris agreement?

Answer 24

aimed to reduce the emission of gases that
contribute to global warming

Question 25

How many countries signed and ratified the paris agreement

Answer 25

195 signed and 190 ratified

Question 26

an area in the stratosphere where ozone is highly concentrated o absorbs most of the ultraviolet (UV) light from the sun

Answer 26

Ozone layer

Question 27

naturally in the stratospheric layer of the atmosphere • ~

Answer 27

Good ozone

Question 28

How many miles up is the good ozone

Answer 28

10-30

Question 29

ground level, created by chemical reactions between nitrogen oxides, volatile organic compounds and sunlight (vehicle exhaust, gas vapor, solvent)

Answer 29

Bad ozone

Question 30

Molecule w 3 oxygen atoms

Answer 30

Ozone

Question 31

What layer of the earth acts like a sunscreen for the Earth’s inhabitants

Answer 31

Stratosphere

Question 32

thinning in the ozone layer that occurs over the poles during the spring

Answer 32

Ozone hole

Question 33

each year for the past few decades during the Southern Hemisphere spring, chemical reactions involving _______ cause ozone in the southern polar region to be destroyed rapidly and severely

Answer 33

chlorine and bromine

Question 34

during the _____, it was discovered that chlorofluorocarbons (CFCs) might be damaging the ozone layer

Answer 34

1970s

Question 35

How is cfc damaging?

Answer 35

In the earths surface, its chemically stable but once it reach the stratosphere, it breaks apart and these broken molecules destroy the ozone

Question 36

What is.the largest historical extent of the ozone hole? And when did it occured? this area is equivalent to almost seven times the territory of the EU

Answer 36

28.4 million 𝑘𝑚2; september 2000

Question 37

in late September 2022, the Antarctic ozone hole reached its maximum area of

Answer 37

24.5 million 𝑘𝑚2

Question 38

How Long will it Take to Fix the Ozone Hole Completely?

Answer 38

if the Montreal Protocol is fully implemented, the ozone layer is projected to recover completely

Question 39

projections from the United Nations Environment Program (UNEP), suggest the Antarctic ozone layer will recover to 1980 levels by around what year?

Answer 39

2066

Question 40

What year is the recovery of the rest of the world?

Answer 40

2040-20245