Description : What two gases make up most of the atmosphere What is the combined percentage of the two gases?
Last Answer : What is the answer ?
Description : Which gases were found in excess in earlier atmosphere? -Geography
Last Answer : In the earlier atmosphere there was mainly hydrogen and helium.
Description : Which one of the following noble gases is not found in atmosphere ?
Last Answer : Which one of the following noble gases is not found in atmosphere ? A. (A) Rn B. (B) Kr C. Ne D. (D) Ar
Description : Which one of the following noble gases is not found in the atmosphere? (1) Argon (2) Krypton (3) Radon (4) Xenon
Last Answer : (3) Radon Explanation: All the noble gases are present in Earth's atmosphere and, except for helium and radon, their major commercial source is the air, from which they are obtained by liquefaction and fractional distillation.
Description : The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the (A) Ionosphere (B) Troposphere (C) Stratosphere (D) None of these
Last Answer : (B) Troposphere
Description : While many different gases are found in the atmosphere, a number do NOT contribute significantly to solar heating of the atmosphere. Which TWO of the following gases do NOT absorb much heat? w) carbon dioxide x) nitrogen y) water vapor z) oxygen
Last Answer : ANSWER: X and Z -- NITROGEN and OXYGEN
Description : Look at the following gases: 1. Carbon dioxide 2. Helium 3. Nitrogen 4. Oxygen The two most abundant gases in the atmosphere are: (a) 1 and 3 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4
Last Answer : Ans:(c)
Description : The gases which are used by drivers as an artificial atmosphere are helium and-------? A. Nitrogen B. Oxygen (Answer) C. Neon D. Carbon monoxide
Last Answer : B. Oxygen (Answer)
Description : The atmosphere of moon consists of-------? A. 90% Hydrogen, 10% Nitrogen B. 80%Nitrogen, 20% Hydrogen C. 60% Nitrogen, 40%inert gases (Answer) D. None
Last Answer : C. 60% Nitrogen, 40%inert gases (Answer)
Description : What were the gases which initially formed the earth’s atmosphere? -Geography
Last Answer : Hydrogen’ and helium were the gases which initially formed the earth’s surface. The early atmosphere with hydrogen and helium is supposed to have been stripped off as a result of intense ... water vapour and gases at atmosphere. It was the first „ stage of atmosphere development.
Description : The order of abunndance of inert gases in the atmosphere is
Last Answer : The order of abunndance of inert gases in the atmosphere is A. `Ar lt Ne lt Xe` B. `Ar gt Ne gt Xe` C. `Ar gt Xe gt Ne` D. `Ne gt Ar gt Xe`
Description : What is the process by gases in the atmosphere qbsorb and rerdaiate heat?
Last Answer : Need answer
Description : What is the order of the four most abundant gases in the Earth's atmosphere from most abundant to least abundant?
Last Answer : Nitrogen, Oxygen, Argon & Carbon Dioxide.
Description : What is the top four gases in the earth's atmosphere include?
Last Answer : Nitrogen, Oxygen, Carbon Dioxide and Neon are the four maingases in order of percentage.
Description : What are the two most abundant gases in earths atmosphere?
Last Answer : Nitrogen and Oxygen
Description : A natural warming process involving the interaction of sunlight and carbon dioxide and other gases from the atmosphere
Last Answer : Ans. Green house effect
Description : In the atmosphere, which of the following gases account for about 99.0 % per cent by volume?
Last Answer : Ans. Nitrogen, Oxygen, Carbon dioxide
Description : Oxygen The gases which are used by divers as an artificial atmosphere are helium and _____. A. Oxygen B. Nitrogen C. Neon D. Carbon monoxide
Last Answer : ANSWER: A
Description : Helium The gases which are used by divers as an artificial atmosphere are helium and _____. A. Oxygen B. Nitrogen C. Neon D. Carbon monoxide
Description : The gases which are used by divers as an artificial atmosphere are helium and _____. A. Oxygen B. Nitrogen C. Neon D. Carbon monoxide
Description : The main cause of global climatic change is – (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover
Last Answer : (1) increase in the content of carbon dioxide in the atmosphere Explanation: Our ever increasing addiction to electricity from coal burning power plants eleases enormous amounts of carbon dioxide ... sources, we are highly dependent on burning coal for our personal and commercial electrical supply.
Description : Earth's atmosphere is an envelope of gases extending to a height of – (1) 100 km (2) 150 km (3) 200 km (4) 300 km
Last Answer : (3) 200 km Explanation: The atmosphere of the. Earth is an envelope of gases extending to a height of 200km.
Description : The highest volume of gases in lower atmosphere is comprised of - (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen
Last Answer : (4) Nitrogen Explanation: There are a number of atmospheric gases which make up air. In the lower atmosphere or troposphere, the main gases are nitrogen and oxygen, which make up 78% and 21% of the volume of air respectively. The remaining 1% of the atmospheric gases is made up of trace gases.
Description : Envelope of gases surrounding the Earth is known as: C A. Hydrosphere B. Cryosphere C. Atmosphere D. Biosphere
Last Answer : Atmosphere
Description : Pick out the wrong statement. (A) Addition of methane to the furnace atmosphere reduces decarburising by hydrogen (B) Nitrogen in presence of steam decor-burises high carbon steel, whereas hydrocarbon ... the metal surface) cause nitride formation with increase in surface hardness (D) None of these
Last Answer : (D) None of these
Description : Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the (A) Forestation (B) Rain (C) Green house effect (D) Vegetation
Last Answer : (C) Green house effect
Description : The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. (A) 10 (B) 200 (C) 1000 (D) 2000
Last Answer : (B) 200
Description : Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? (A) CO2 (B) H2 (C) SO3 (D) N2
Last Answer : (C) SO3
Description : Pick out the wrong statement. (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere (B) ... ) The earth's atmosphere is an envelope of gases extending upto a height of about 200 kms
Last Answer : (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere
Description : Pick up the correct statement from the following: (A) The precipitation during its travel in atmosphere dissolves certain gases (B) Rain water which percolates through the ground, is free from ... water may dissolve minerals and salts present in the earth's layers (D) All the above
Last Answer : (D) All the above
Description : Here is an interesting question. Which might be the major factor responsible for the rise in carbon dioxide ("greenhouse gases") in our atmosphere?? (There is not likely to be much consensus as to the 'correct' answer. Think critically and objectively about this issue.)
Last Answer : The major source of carbon dioxide is likely coming from volcanoes, vents in our earth's crust, the oceans, and weathering of the earth's crust.
Description : If Earth had no greenhouse gases, the planet would be ? (a) Too hot to support life. (b) Cooler but still able to support life. (c) Too cold to support life. EDIT: COMPLEX LIFE (d) It depends on the species of aerosol in the GHG-free atmosphere
Last Answer : Too cold to support life. EDIT: COMPLEX LIFE
Description : Which one of the following green house gases has the shortest residence time in the atmosphere? (A) Chlorofluorocarbon (B) Carbon dioxide (C) Methane (D) Nitrous oxide
Last Answer : (C) Methane
Description : The highest volume of gases in lower atmosphere is comprised of (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen
Last Answer : Nitrogen
Description : Earth’s atmosphere is an envelope of gases extending to a height of (1) 100 km (2) 150 km (3) 200 km (4) 300 km
Last Answer : 200 km
Description : The main cause of global climatic change is (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover
Last Answer : increase in the content of carbon dioxide in the atmosphere
Description : Of all the gases present in the air, which one of the following is the highest in percentage? (a) Carbon dioxide (b) Hydrogen (c) Nitrogen (d) Oxygen
Description : Correct percentage of two green house gases is
Last Answer : Correct percentage of two green house gases is A. `N_(2)O-6%,CO_(2)-86%` B. `CH_(4)-20%,N_(2)O-18%` C. `CO_(2)-40%, CFC-30%` D. `CFC-14%,CH_(4)-20%`
Description : Which of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contibute to the total global warming?
Last Answer : Which of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contibute ... . `CO_(2)" "40%," "CFCs" "30%`
Description : Too much of excess air in combustion results in high (A) Fuel consumption for the same heat load (B) Stack gas temperature (C) Percentage of oxygen in flue gases (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : 349. Which gas has the highest percentage in the atmosphere? -General Knowledge
Last Answer : answer:
Last Answer : 99.97 percent of the total energy of the atmosphere comes from the sun.
Last Answer : Mars contains 3 % nitrogen in the atmosphere
Description : The correct percentage of `CO_(2)` in atmosphere is
Last Answer : The correct percentage of `CO_(2)` in atmosphere is A. `0.03%` B. `0.3%` C. `1%` D. `C^(14) and O^(18)`
Last Answer : The correct percentage of `CO_(2)` in atmosphere is A. `0.03%` B. `0.3%` C. `1%` D. `1.1%`
Description : What percentage of Earth's atmosphere iis oxygen?
Last Answer : 0.21
Description : Pick out the wrong statement. (A) Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal (B) Low grade coal can be used, but generally high volatile ... and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing (D) None of these
Description : Pick up the incorrect statement from the following. For performing compressive strength test of cement (A) Cement and standard sand mortar are used in the ratio of 1 : 3 (B) Water is added at the ... cm 10 cm is used (D) The prepared moulds are kept in a atmosphere of 50% relative humidity
Last Answer : Answer: Option A