Green House Affest And Global Warming

Question 1

What is the green house affect ??

Answer 1

The greenhouse affect takes place when the sunrays heat the earth. The heat is absorbed by the surface of the earth and radiated back into the atmosphere

Question 2

A part of this heat is trappes in the atmosphere by gases like ___________
______________ _______________ _____________
___________ ________

Answer 2

Carbon dioxide , methane, nitrous oxide,
Water vapour, chloroflurocarbons

Question 3

Why do the greenhouse gased act as a mirror ??

Answer 3

They act like a mirror as they reflect back to the earth some of the trapped heat energy therefore, making the earth warmer

Question 4

Name 4 causes that have led to the increase in ghgs

Answer 4

Increase in industries

Increase in deforestation

Increase in atmospheric pollution due to the emissions from chimneys of factories

Expansion of cities and towns

Question 5

Increase in natural disasters like __________ ___________ _____________ that rease large amounts of ________ and __________ and ________ into the atmosphere.

Answer 5

Earth quakes, volcanic Eruptions and floods , smoke dust gases

Question 6

What is global warming ?

Answer 6

Global warming is the increase in the average earth’s temperature

Question 7

State five causes of global warming

Answer 7

Burning fossil fuels
Factories belching smoke
Airplanes flying in the sky
Forest fires
Rapid destruction if forest for industries and agriculture

Question 8

What will lead to food shortages ??

Answer 8

Global warming will worsen climate change which is leading to food shortages

Question 9

What will climate change cause ??

Answer 9

Climate change will cause disturbances in whether patterns and lead to frequent and heavy floods in some places and severe droughts in others.

It will also cause meliting of polar ice caps with huge chunks of icebergs several km across from mainland

Question 10

Which countries would be swamped by floods if we do not take charge on global warming??

Answer 10

Countries like bangladesh, thailand , malaysia and the southern eastern parts of USA like florida and louisiana would be swamped by floods

Question 11

Many forms of wildlife are now at rusk of extinction due to ________ and __________ which is causeing the disappearance of _________

Answer 11

Climate change, deforestation, habitat

Question 12

What natural disasters have increased in the world due to global warming?

Answer 12

Hurricanes , tornadoes , sudden floods, heat waves, wild fires and other similar disasters has increased throughout the world

Question 13

Temperatures changes are causing changes in the flow of _____________

Question 14

How wiuld you reduce global warming?

Answer 14

We can reduce global warming by using materials such as bamboo, recycled metal, organic paints in the construction of buildings . We can use solar energy for heat and light in out houses , using clean fuel like cng and unleaded petrol to run vehicles.

Question 15

How can u reduce global warming in everyday practices??

Answer 15

We can choose to travel in public transports , walking and hiking , biking or using a carpool. Buying energy efficient household items and replaces light bulbs with cfl bulbs will also reduce global warming

Question 16

If we are exposed to the UV rays if the sun, what diseases can we get ?

Answer 16

Human and animals can get sunburn,cataract, hair loss, skin cancer and birth deformities. Plant growth mayb also be affected.

Question 17

How is the ozone gas starting to get depleted ??

Answer 17

Cfcs do not break down in the form of rain. They float up in the atmospher with the halp of winds and warm air currents . They drift up slowly till they reach the stratosphere. The uv rays of the sun breaks them apart and releases chlorine atoms

Question 18

What forms chlorine monoxide

Answer 18

Each chlorine atom combined with oxygen atoms combine chlorine monoxide

Question 19

What does chlorine monoxide cause ?

Answer 19

Chlorine monoxide causes a chemical reaction which destroys ozone molecules in the stratosphere and the ozone hole is gradually formed.

Question 20

Burning of harmful fossil fuels causes _____________

Answer 20

Ozone depletion

Question 21

Vehicles that run on petroleum relase _______________ in the air.

Answer 21

Carbon dioxide

Question 22

What gases destroy the ozone layer??

Answer 22

Carbon dioxide and other greenhouse gases destiy the ozone layer in the atmosphere by breaking up the molecules and leaving extremely vulnerable to the uv rays if the sun.

Question 23

Where are most of the greenhouse gases found??

Answer 23

Most of the greenhouse gases are found in fossil fuel emissions that cars burn off and release into the atmosphere