CBES Board Class 10/ Environmental chemistry i atmosphere multiple choice questions Sample Test,Sample questions

Question:
 Formation of most of the clouds is in

1.troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 01:45:53


Question:
 How much cooler does the air get for every 1 km increase in altitude in the troposphere?

1.2 degrees

2.6.5 degrees

3.8 degrees

4.10 degrees

Posted Date:-2021-12-30 23:38:56


Question:
 Which of the following have an impact on brain development in human beings especially among children?

1.chlorofluorocarbons (CFCs)

2.methane

3.carbon monoxide

4. lead compounds

Posted Date:-2021-12-31 00:14:53


Question:
 Which of the following is produced when dead plant material decays in the absence of air?
methane
carbon monoxide

1. chlorofluorocarbons (CFCs)

2.methane

3.carbon monoxide

4.lead compounds

Posted Date:-2021-12-31 00:26:13


Question:
An allotropic form of oxygen comprising three oxygen atoms is called

1. ozone

2.oxidation

3. oxidizing agent

4.reducing agent

Posted Date:-2021-12-31 01:44:03


Question:
Anything that destroys some part of the environment is called

1.dirt

2.virus

3.pollutant

4.bacteria

Posted Date:-2021-12-31 01:54:30


Question:
Approximately, what percentage of water vapor is contained by the air in the tropical rain forest?

1.0.01

2.0.02

3.0.03

4.0.04

Posted Date:-2021-12-31 02:06:18


Question:
Group of chemically unreactive compounds that are commonly used as solvents are called

1.chlorofluorocarbons (CFCs)

2.functional groups

3.alkyl groups

4.lead compounds

Posted Date:-2021-12-31 00:18:12


Question:
Height of stratosphere is

1. 0-12 Km

2.12-50 Km

3.50-80 Km

4.above 80 Km

Posted Date:-2021-12-31 01:46:47


Question:
Height of thermosphere is

1. 50 Km

2. 80 Km

3. above 80 Km

4.30 Km

Posted Date:-2021-12-31 00:13:31


Question:
Height of troposphere is

1.10 Km

2.12 Km

3.50 Km

4.80 Km

Posted Date:-2021-12-31 00:31:33


Question:
Height of troposphere is

1.10 Km

2.12 Km

3.50 Km

4.80 Km

Posted Date:-2021-12-31 00:32:14


Question:
How much higher can be the temperature inside a greenhouse as compared to the outside?

1.20 °C higher

2.10 °C to 15 °C higher

3. 5 °C higher

4.25 °C higher

Posted Date:-2021-12-31 00:09:36


Question:
If silk clothes are left in the open air for a week or so, their color fades because of

1. sulphur dioxide is converted into sulphur trioxide

2.dirt

3.carbon monoxide

4.nitrogen oxides

Posted Date:-2021-12-31 00:12:43


Question:
Majority of the UV rays are screened out by




1.oxygen

2.nitrogen

3.ozone

4.carbon

Posted Date:-2021-12-31 01:50:06


Question:
Minimum temperature of the troposphere is

1. 17 °C

2.−55 °C

3.−5 °C

4.1800 °C

Posted Date:-2021-12-31 00:11:15


Question:
Ozone formation and destruction are powered by

1. oxygen gas

2.atomic oxygen

3.ultraviolet radiation

4.chlorine gas

Posted Date:-2021-12-31 01:49:17


Question:
Percentage of hydrogen in the air is

1. 0.99

2.0.8

3.0.5

4.0.25

Posted Date:-2021-12-31 00:14:03


Question:
The atmosphere is divided into how many layers?

1.Two

2.Three

3.four

4.Five

Posted Date:-2021-12-30 23:42:45


Question:
The lower layer of the thermosphere is




1.ionosphere

2.exosphere

3.mesosphere

4.stratosphere

Posted Date:-2021-12-31 01:28:04


Question:
The occurrence of weather is in

1. troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 00:27:48


Question:
The outer layer of the thermosphere is


1.ionosphere

2.exosphere

3.mesosphere

4.stratosphere

Posted Date:-2021-12-31 00:10:21


Question:
The pH of normal rainwater is

1.4

2.5

3.5.6

4.6.6

Posted Date:-2021-12-31 02:05:27


Question:
The temperature of the outer mesosphere is

1. 93 °C

2.−93 °C

3.;5 °C

4.−5 °C

Posted Date:-2021-12-31 00:12:08


Question:
The thermosphere is divided into how many layers?

1.Two

2.Three

3.four

4.Five

Posted Date:-2021-12-31 00:28:43


Question:
What is meant by the term 'meso'?

1.top

2.middle

3.turning

4.changing

Posted Date:-2021-12-31 00:17:00


Question:
What is meant by the term 'tropo'?

1. top

2.first

3.high

4.turning

Posted Date:-2021-12-31 01:48:41


Question:
What is the color of nitrogen dioxide?

1.colorless

2.pink

3.brown

4.reddish brown

Posted Date:-2021-12-31 00:29:38


Question:
What is the source of lead compounds?

1.aerosol sprays foams

2.exhaust fumes of motor vehicles

3.incomplete burning of wood

4.none of above

Posted Date:-2021-12-30 23:41:53


Question:
What is the term used for the envelope of gases and water vapor surrounding the planet earth?

1.air

2.atmosphere

3.environment

4.biome

Posted Date:-2021-12-31 01:32:50


Question:
Which of the following causes headache and dizziness and can even cause death if inhaled for a long time?

1.sulphur dioxide

2.carbon dioxide

3.nitrogen dioxide

4.carbon monoxide

Posted Date:-2021-12-31 01:52:55


Question:
Which of the following comes mainly due to the combustion of fuel used in motor vehicles?

1. chlorofluorocarbons (CFCs)

2.methane

3.carbon monoxide

4.lead compounds

Posted Date:-2021-12-31 01:51:54


Question:
Which of the following has the lowest percentage in the air?

1. krypton

2.argon

3.hydrogen

4.helium

Posted Date:-2021-12-31 01:34:56


Question:
Which of the following is a powerful irritant which can aggravate the symptoms of people who suffer from respiratory disorders?

1.sulphur dioxide

2.carbon monoxide

3.oxides of nitrogen

4.carbon dioxide

Posted Date:-2021-12-31 00:16:25


Question:
Which of the following is an excellent heat absorber and causes global warming?

1.chlorofluorocarbons (CFCs)

2.methane

3. carbon monoxide

4.lead compounds

Posted Date:-2021-12-31 02:02:50


Question:
Which of the following is further divided into two layers?




1.troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 00:17:33


Question:
Which of the following is not true about carbon monoxide?

1.it is poisonous

2. it is insoluble in water

3.it is an air pollutant

4. it can cause death

Posted Date:-2021-12-31 00:30:14


Question:
Which of the following is not true about nitrogen dioxide?

1. it is reddish brown

2.it has pungent odor

3.it is insoluble in water

4.it is toxic

Posted Date:-2021-12-31 01:42:52


Question:
Which of the following is not true about sulfur dioxide?

1.it is colorless

2.it is odourless

3. it is an air pollutant

4.it causes breathing difficulties

Posted Date:-2021-12-31 01:41:57


Question:
Which of the following is produced when electrical discharges pass through oxygen in the air?

1.chlorofluorocarbons

2.methane

3.ozone

4. lead compounds

Posted Date:-2021-12-30 23:40:47


Question:
Which of the following is responsible for the rise in temperature in the stratosphere?

1. position of stratosphere

2.height of stratosphere

3.ozone

4.sunlight

Posted Date:-2021-12-31 01:36:07


Question:
Which of the following is the fourth layer of atmosphere as one moves upwards from the Earth's surface?

1.troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 02:04:47


Question:
Which of the following is the second layer of atmosphere as one moves upwards from the Earth's surface?

1.troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 01:47:33


Question:
Which of the following is the Third layer of atmosphere as one moves upwards from the Earth's surface?

1.troposphere

2.stratosphere

3.mesosphere

4.thermosphere

Posted Date:-2021-12-31 02:03:52


Question:
Which of the following is true about carbon monoxide?

1.it is poisonous

2.it is insoluble in water

3.it is not an air pollutant

4.it cannot cause death

Posted Date:-2021-12-31 01:36:59


Question:
Which of the following is true about carbon monoxide?

1.it is poisonous

2.it is insoluble in water

3. it is not an air pollutant

4.it cannot cause death

Posted Date:-2021-12-31 01:40:40


Question:
Which of the following is true about incineration?

1.it consumes all combustible materials

2.it is a clean process

3.it does not produce air pollution

4.it does not generate odor

Posted Date:-2021-12-31 01:44:52


Question:
Which of the following is true about nitrogen dioxide?

1.it is colorless

2.it is odourless

3.it is soluble in water

4.it is soluble in oxygen

Posted Date:-2021-12-31 01:30:37


Question:
Which of the following is true about ozone?

1. light blue in colour

2.odourless

3.not harmful

4.not a pollutant

Posted Date:-2021-12-31 00:15:40


Question:
Which of the following is true about sulfur dioxide?

1. it is colorless

2.it is odourless

3. it is not an air pollutant

4.it does not cause breathing difficulties

Posted Date:-2021-12-31 00:30:56


Question:
Which two main gases are produced when you burn a piece of wood?

1. oxygen and nitrogen

2.carbon dioxide and oxygen

3.carbon dioxide and carbon monoxide

4.carbon dioxide and nitrogen

Posted Date:-2021-12-31 00:27:16


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