Formation of most of the clouds is in
1.troposphere
2.stratosphere
3.mesosphere
4.thermosphere
Posted Date:-2021-12-31 01:45:53
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
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
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
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
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
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
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
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
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
Height of troposphere is
1.10 Km
2.12 Km
3.50 Km
4.80 Km
Posted Date:-2021-12-31 00:31:33
Height of troposphere is
1.10 Km
2.12 Km
3.50 Km
4.80 Km
Posted Date:-2021-12-31 00:32:14
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
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
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
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
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
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
The atmosphere is divided into how many layers?
1.Two
2.Three
3.four
4.Five
Posted Date:-2021-12-30 23:42:45
The lower layer of the thermosphere is
1.ionosphere
2.exosphere
3.mesosphere
4.stratosphere
Posted Date:-2021-12-31 01:28:04
The occurrence of weather is in
1. troposphere
2.stratosphere
3.mesosphere
4.thermosphere
Posted Date:-2021-12-31 00:27:48
The outer layer of the thermosphere is
1.ionosphere
2.exosphere
3.mesosphere
4.stratosphere
Posted Date:-2021-12-31 00:10:21
The pH of normal rainwater is
1.4
2.5
3.5.6
4.6.6
Posted Date:-2021-12-31 02:05:27
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
The thermosphere is divided into how many layers?
1.Two
2.Three
3.four
4.Five
Posted Date:-2021-12-31 00:28:43
What is meant by the term 'meso'?
1.top
2.middle
3.turning
4.changing
Posted Date:-2021-12-31 00:17:00
What is meant by the term 'tropo'?
1. top
2.first
3.high
4.turning
Posted Date:-2021-12-31 01:48:41
What is the color of nitrogen dioxide?
1.colorless
2.pink
3.brown
4.reddish brown
Posted Date:-2021-12-31 00:29:38
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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