Description : Which of the following is a source of methane? (A) Wetlands (B) Foam Industry (C) Thermal Power Plants (D) Cement Industry
Last Answer : Answer: A
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 : 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 : is useful for uprooting and burying weeds between standing rows of rice crops in wetlands a) Sweep b) Engine operated weeder c) Cono weeder for paddy d) Dry land weeder
Last Answer : <!-- [endif] -->Cono weeder for paddy
Description : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult
Last Answer : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of ... true but reason is wrong D. Both are wrong
Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s
Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.
Description : Assertion (A): There are several goods and services that society needs however private sector doesn t produce all of them. Reason (R): Private sector is profit driven. (a) Both A & R are true and R is the correct ... correct explanation of A. (c) A is true but R is false. (d) Both A & R are false.
Last Answer : (a) Both A & R are true and R is the correct explanation of A
Description : Which important greenhouse gas other than methane is linerated from agriculture fields?
Last Answer : Which important greenhouse gas other than methane is linerated from agriculture fields? A. Nitrous oxide, B. Ammonia C. Sulphur dioxide D. Arsenic
Description : An important green-house gas other than methane being produced from the agricultural fields is– (1) Nitrous oxide (2) Ammonia (3) Sulphur dioxide (4) Arsine
Last Answer : (1) Nitrous oxide Explanation: Nitrous oxide (N2O) and methane (CH4) are the two major greenhouse gasses (GHG) emitted by agricultural activities. N2O accounts for around 8% of the warming impact of current human GHG emissions.
Description : An important green-house gas other than methane being produced from the agricultural fields is (1) Nitrous oxide (2) Ammonia (3) Sulphur dioxide (4) Arsine
Last Answer : Nitrous oxide
Description : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg
Last Answer : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more ... D. If both Assertion & Reason are false.
Description : Assertion : The primitive atmosphere was reducing one i.e., without oxygen. Reason : In the atmosphere, oxygen was involved in forming ozone.
Last Answer : Assertion : The primitive atmosphere was reducing one i.e., without oxygen. Reason : In the ... . If both the assertion and reason are false.
Description : Track structure for CC+8 t+ 2 t loaded trains is:- (a) 52 Kg 90 UTS;PSC 1540 sleepers/ Km.; 250 mm ballast. (b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.* (c) 52 Kg 72 UTS;PSC 1540 sleepers/ Km.; 300 mm ballast. (d) 90 R;PSC 1340 sleepers/ Km.; 250 mm ballast.
Last Answer : b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.*
Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe
Last Answer : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split ... If both Assertion & Reason are false.
Description : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High concentration of progesterone is present in proliferati
Last Answer : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High ... . If both Assertion & Reason are False.
Description : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the
Last Answer : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either ... D. If both Assertion and Reason are false
Description : What would happen if gravity suddenly doubled on Earth, but the mass of the atmosphere did not change? (a) Surface pressure would stay the same but the density would increase. (b) Surface ... (d) Surface density and pressure would stay the same because the atmosphere is in hydrostatic balance.
Last Answer : Surface pressure and density would both increase.
Description : At zero degrees Celsius and one atmosphere (STP), the volume of a gas is 1,000 milliliters. If the temperature is increased to 25 degrees Celsius and the pressure is doubled, what is the new volume of the gas? w) 546 milliliters x) 500 milliliters y) 1,000 milliliters z) 273 milliliters
Last Answer : ANSWER: W -- 546 MILLILITERS
Description : Assertion `(A) : beta-` particles are deflected more than `alpha-` particles in a given electric field. Reason `(R) : `Charge on `alpha-` particles is
Last Answer : Assertion `(A) : beta-` particles are deflected more than `alpha-` particles in a given electric field. ... . If both (A) and (R ) are incorrect.
Description : Assertion `(A) :` Hydrogen bomb is more powerful than atomic bomb. Reason `(R) :` In hydrogen bomb, fusion reaction is initiated. a)If both `(A)` and
Last Answer : Assertion `(A) :` Hydrogen bomb is more powerful than atomic bomb. Reason `(R) :` In hydrogen bomb, fusion ... D. If both (A) and (R ) are incorrect.
Description : Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on
Last Answer : Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of ... D. A is incorrect but R is correct
Description : Assertion : Rainbow is an example of the dispersion of sunlight by the water droplets. Reason: light of shorter wavelength is scattered much more than light of longer wavelength (a) Both A and R are true and R is the correct ... of A.(c) A is true but R is false. (d) A is false but R is true.
Last Answer : (c) A is true but R is false.
Description : Assertion A: Depth and width required at the entrance to a harbour are more than those required in the channel. Reason R: The entrance to a harbour is usually more exposed to waves as compared to the harbour itself. ... explanation of A (C) A is true but R is false (D) A is false but R is true
Last Answer : (A) Both A and R is true and R is the correct explanation of A
Description : Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads. Select your answer based on the coding system given below: (A) Both A ... explanation of A (C) A is true but R is false (D) A is false but R is true
Last Answer : Answer: Option A
Description : Rate of reaction can be expressed as –dc/dt where dc is small decreasing concentration in time dt seconds, (-) sign indicates that the concentration decreases with time. For every 10 degrees rise of temperature, the rate of reaction is generally. Doubled
Last Answer : Which equation gives the relation between specific rate (k) and Temperature ?
Description : In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will (A) Remain the same (B) Be halved (C) Also be doubled (D) Become one fourth
Last Answer : (A) Remain the same
Description : For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cp n , then what is the value of 'n' for this chemical reaction? (A) 0 (B) 1 (C) 2 (D) 3
Last Answer : (B) 1
Description : A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1m3 /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/ ... reactor should be increased by a factor of: (A) 7 (B) 6 (C) 3 (D) 7/3
Last Answer : (A) 7
Description : In a chemical reaction as shown in the bellow figure, it is observed that the (i) Rate of formation of 'P' is doubled on doubling the concentration of 'X' (ii) Rate of formation of 'P' is quadrupled ... of the above chemical reaction? (A) Zeroth order (B) First order (C) Second order (D) Third order
Last Answer : (D) Third order
Description : What is the order of chemical reaction as shown in the bellow figure, if it is found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B ... the concentrations of both B & C were doubled? (A) 1 (B) 2 (C) 3 (D) 4
Last Answer : (B) 2
Description : The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2
Last Answer : (C) 1
Description : The value of 'n' for a chemical reaction A → B, whose reaction rate is → CA n , will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled. (A) 0 (B) 1 (C) 2 (D) 3
Last Answer : (D) 3
Description : Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be (A) Same (B) Doubled (C) Halved (D) One fourth of its original value
Last Answer : (A) Same
Description : 25. In a reaction, A + B Product, rate is doubled when the concentration of B is doubled, and rate increases by a factor of 8 when the concentrations of both the reactants (A and B) are doubled, rate law for the reaction can be ... Rate = k[A] [B]2 (3) Rate = k[A]2 [B]2 (4) Rate = k[A] [B]
Last Answer : Rate = k[A]2 [B] (
Description : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of graphite is lower than that of diamond.
Last Answer : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of ... False. D. If both Assertion & Reason are false.
Description : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays Reason (R ) : `beta`-particles are lighte
Last Answer : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays ... . If both (A) and (R ) are incorrect.
Description : Assertion (A): Alkyl aryl ethers on reaction with HI give alkyl iodide phenols Reason (R): Aryl - oxygen bond is weaker than alkyl oxygen bond
Last Answer : Assertion (A): Alkyl aryl ethers on reaction with HI give alkyl iodide phenols Reason (R): Aryl - oxygen ... is false D. A is false but R is true
Description : Assertion(A): Per capita Income is not a useful criterion and should not be used as measure of development. Reason( R) :Kerala with lower per capita income has a better human development ranking than Haryana. a) Both A ... of A. c) A is correct but R is wrong. d) A is wrong but R is correct.
Last Answer : b) Both A and R are true and R is the not correct explanation of A.
Description : Assertion A: Basin walls have to be of much greater height than dock walls. Reason R: Tidal basins are subject to fluctuations of levels due to tidal variations Select your answer based on the coding system given below: (A ... of A (C) A is true but R is false (D) A is false but R is true
Description : Assertion A: Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R: No wave can have a height greater than the depth of water through which it passes Select your answer based on ... of A (C) A is true but R is false (D) A is false but R is true
Last Answer : (A) Both A and R is true and R is correct explanation of A
Description : Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below: (A) Both A and R is ... of A (C) A is true but R is false (D) A is false but R is true
Last Answer : Answer: Option B
Description : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element disinegrates, more of it is formed in nat
Last Answer : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element ... . If both (A) and (R ) are incorrect.
Description : Assertion (A): Hydrostatic lubrication is more advantageous when compared to hydrodynamic lubrication during starting and stopping the journal in its bearing. Reason (R): In hydrodynamic lubrication, the fluid film pressure is ... (c) A is true but R is false (d) A is false but R is true
Last Answer : (b) Both A and R are individually true but R is not the correct explanation of A
Description : how much sunlight does the wetlands biome get in the summer winter fall spring
Last Answer : Need Answer
Description : A gas found in natural wetlands -Geography
Last Answer : methane
Description : wetlands and estuaries are critical ecosystems, but do not require protection. -General Knowledge
Last Answer : The given statement is false.
Description : what characteristic is important for plants found in saltwater wetlands -General Knowledge
Last Answer : All of the above are characteristic that is important for plants found in saltwater wetlands including tolerance to high temperatures, tolerance to salinity and a range of climate zones.
Description : Wetlands International is a conservation organization. Go through the following statements in the same context and choose the correct statement i) Only the countries which are signatories to the ... working at ground level to use practical knowledge for framing better policies -General Knowledge
Last Answer : Only iii Explanation: Wetland International is a global, independent, not for profit organization that is supported by Governments across the world and various NGOs. It is situated in the ... It also advocates on various corporate and international policies forum and conventions across the globe.
Description : When is "World Wetlands Day" celebrated ? -General Knowledge
Last Answer : 2 FebruaryWorld Wetlands Day 2021
Description : What is the date of World Wetlands Day ?
Last Answer : 2nd World Wetlands Day.