Description : Which of the following gases contributes maximum to global warming? (A) CFC (B) CO2 (C) Methane (D) NO 2
Last Answer : (C) Methane
Description : The Earth Summit held in Rio de Janeiro in 1992 was called (a) for immediate steps to discontinue use of CFCs that were damaging the ozone layer (b) to reduce CO2 emissions and global ... utilisation of its benefits (d) to assess threat posed to native species by invasive weed species.
Last Answer : (c) for conservation of biodiversity and sustainable utilisation of its benefits
Description : Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R) : Besides `CO_(2)`, two other gases methane and CFCs are al
Last Answer : Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R) : Besides ` ... true but reason is wrong D. Both are wrong
Description : Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise
Last Answer : (A)Global warming
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 : It is estimated that out of the total global warming the relative contribution of `CO_(2)`, `CH_(4)` CFCs and `N_(2)O` are found respectively as:
Last Answer : It is estimated that out of the total global warming the relative contribution of `CO_(2)`, `CH_(4)` CFCs ... 60% C. 60%,20%,14%,6% D. 6%,14%,20%,60%
Description : Relative contribution of various green house gases to total global warming is given in the diagrams. Identify the green house gases
Last Answer : Relative contribution of various green house gases to total global warming is given in the diagrams. Identify the green ... CH_(4),c-CO_(2),d-N_(2)O`
Description : Consider the following gases: 1. Nitrous oxide 2. CFCs 3. Methane 4. Water vapour The Green House Gases (GHGs) are: (a) 1, 2, 3 and 4 (b) 1, 3 and 4 only (c) 1, 2 and 4 only (d) 1, 2 and 3 only
Last Answer : Ans:(a)
Description : Higher concentration of CO2 in atmosphere (A) Allows visible solar radiation (ultraviolet) of short wave-length to pass through (B) Reflects and absorbs the longer wavelength (infra-red) radiations (C) Prevents solar heat being ... in 'heat trap' i.e., global warming (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) ozone and methane x) nitrous oxide and sulfur dioxide y) methane and carbon dioxide z) ozone and carbon monoxide
Last Answer : ANSWER: Y -- METHANE AND CARBON DIOXIDE
Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide
Last Answer : ANSWER: Z -- METHANE AND CARBON DIOXIDE
Description : Which gas is released from paddy fields? a) CO2 b) H2S c) CH4 d) NH3
Last Answer : c) CH4
Description : Pick out the correct statement. (A) Deforestation helps in controlling the green house effect (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone ( ... natural source of production of SO2 & H2S pollutant (D) Sulphur dioxide causes death by asphyxiation
Last Answer : (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone
Description : The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the (A) Catalytic conversion (B) Green house effect (C) Global warming (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect A. Nitrogen Dioxide (NO2) B. Chlorofluorocarbons (CFCs) C. Methane (CH4) (Answer) D. High-fructose corn syrup (HFCs)
Last Answer : C. Methane (CH4) (Answer)
Description : Which combination of gases is suitable for fruit ripening? (a) 80% CH4 and 20% CO2 (b) 80% CO2 and 20% O2 (c) 80% C2H4 and 20% CO2 (d) 80% CO2 and 20% CH2
Last Answer : (c) 80% C2H4 and 20% CO2
Description : Multiple Choice [1 point each] (1) The gases that contribute to the greenhouse effect on Earth are, in order of greatest to smallest in importance, (a) CO2, H20, CH4 (b) H20, CO2, CH4 (c) CH4, CO2, H20 (d) H20, CH4, CO2
Last Answer : (b) H20, CO2, CH4
Description : Greenhouse gas having largest contribution to global warming A) Carbon dioxide (60%) (B) Nitrous oxide (5%) (C) Methane (15%) (D) CFC
Last Answer : A) Carbon dioxide (60%)
Description : Pick out the wrong statement pertaining to 'green house' for the plants. (A) 'Green house' (made of glass) allows visible sunlight (i.e., short wavelength solar radiation like ultra-violet rays) ... ' thereby warming up the earth's surface (D) 'Green house' is colder than the outside atmosphere
Last Answer : (D) 'Green house' is colder than the outside atmosphere
Description : Acid rains are due to which of the following gases? (a) CO2 and CO (b) Ozone and CO2(c) NO2 and SO2 (d) NH3 and CO2
Last Answer : (c) NO2 and SO2
Description : “Green house effect” with respect to global warming refers to which effect? -General Knowledge
Last Answer : answer:
Description : What is true about statements X and Y statement X. Deforestation causes global warming. Statement -Y: Deforestation increases level of green house gas
Last Answer : What is true about statements X and Y statement X. Deforestation causes global warming. Statement -Y: ... explanation D. X and Y both are wrong
Description : Chief green house gas responsible for global warming
Last Answer : Ans. CO2 (50%)
Description : Green house effect” with respect to global warming refers to which effect?
Last Answer : Warming effect
Description : A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the (A) Global warming (B) Green house (C) Atmospheric effect (D) Ionosphere
Last Answer : (B) Green house
Description : Green house effect is related to a) Increased growth of green algae b) Global warming c) Cultivation of vegetables in house
Last Answer : b) Global warming
Description : Can you provide an argument against CO2 being the main cause of Global Warming?
Last Answer : I think this question could get real ugly. You're asking people to provide legitimate scientific information to argue against the scientific consensus. In other words, a bunch of programmers, ... chance of understanding what we know about climate change is to understand the scientific consensus.
Description : Give reason for these: (L-III) (I)Suggest a reason as to why CO is Poisonous (II)How is Excessive Content of CO2 responsible for global warming?
Last Answer : Ans (i) it combines with hemoglobin to form car boxyhemoglobin. (ii)CO2 traps the infrared heat radiations and forms a heat blanket and cause global warming
Description : Acid rain is caused by - (1) SO2 and particulates (2) (2) NO2 and particulates (3) (8) CO2 and CFCs (4) (4) SO2 and NO2
Last Answer : (4) SO2 and NO2 Explanation: Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). Acid ... sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
Description : Acid rain is caused by (1) SO2 and particulates (2) NO2 and particulates (3) CO2 and CFCs (4) SO2 and NO2
Last Answer : SO2 and NO2
Description : Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fu
Last Answer : Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent ... but reason is wrong D. Both are wrong
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 : What are sources of the gases that contribute to global warming?
Last Answer : The big three greenhouse gases that contribute to global warming include carbon dioxide, which comes almost exclusively from burning fossil fuels. The other two are methane and nitrous oxide, which come mostly from animal and agricultural waste.
Description : Which of the following gases cause global warming? (A) Carbon monoxide (B) Carbon dioxide (C) Nitrogen (D) Ozone
Last Answer : (B) Carbon dioxide
Description : Do you agree with these quotes attributed to Gandhi, and if so, what does that say about our society?
Last Answer : He/she sure likes animals. So, I agree partially because animals seem to be needed to be used as a food source, although they don’t deserve cruelty. -Those are interesting qoutes.
Description : `CO_(2), CH_(4), N_(2)O` and CFCs are called greenhouse gases because they can absorb:
Last Answer : `CO_(2), CH_(4), N_(2)O` and CFCs are called greenhouse gases because they can absorb: ... radiations C. visible light radiations D. X-ray radiations
Description : Why must one control green plant growth in aquaculture or fish farming? [a] Plants compete with fish for available DO [b] Plants compete with fish for available O2 [c] Plants compete with fish for available CO2 [d] All of these [e] None of the above
Last Answer : [a] Plants compete with fish for available DO
Description : The main constituent of biogas is (a) H2 (b) H2S (c) N2 (d) CH4
Last Answer : (d) CH4
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 : Is there an authoritative or at least credible source that indicates how many tons CO2-eq reduction can be attributed to the Kyoto Protocol when it is complete?
Last Answer : I'm not sure if there are any independent studies on it, but the general consensus by Scientists worldwide (including many hundreds or thousands not involved in it) is that it will lower our overall CO2 ... pretty moot point. We'll be out of most fossil fuels LONG before we totally kill our planet.
Description : Which is not a green house gas? a) CFC b) CH4 c) CO d) H2
Last Answer : a) CFC
Description : Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry
Last Answer : Answer. (i) Combustion reaction and oxidation reaction. (ii)Double displacement reaction and precipitation reaction. (iii) Combination reaction. (iv) Displacement reaction.
Description : What type of reaction is CH4 plus 2O2 - CO2 plus 2H2O?
Last Answer : Hydrocarbons such as methane burning in oxygen is an example ofoxidation and also combustion.
Description : What is a product in the following chemical reaction CH4 plus 2O2 CO2 plus 2H2O?
Last Answer : Products are carbon dioxide and water.
Description : If you start with 32 grams of CH4 and react it with O2 to form 88 grams CO2 and 72 grams H2O. How much O2 in grams was consumed?
Last Answer : 128 g of oxygen are needed.
Description : Producer gas is a mixture of (a) CO and H2 (b) CO and N2 (c) CH4 and H2 (d) CO2 and H2
Description : In sewers the gas generally found, is A. Hydrogen sulphide (H2S) B. Carbon dioxide (CO2) C. Methane (CH4) D. All the above
Last Answer : ANS: D
Description : Gobar gas contains mainly (a) CO2 + H2 (b) CO2 + H2O (c) CH4 only (d) CH4 + CO2.
Last Answer : (d) CH4 + CO2.