Description : With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct? (a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate. ( ... for higher yield. (d) Light saturation for CO2 fixation occurs at 10% of full sunlight.
Last Answer : (b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum
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 : With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ? (1) Increasing atmospheric CO 2 concentration up to 0.05% can enhance CO 2 fixation ... for higher yield (4) Light saturation for CO 2 fixation occurs at 10% of full sunlight
Last Answer : (2) C 3 plants respond to higher temperatures with enhanced photosynthesis while C 4 plants have much lower temperature optimum
Description : The following are found in higher concentration in the tear than in the serum: a. sodium b. potassium c. Ig G d. glucose
Last Answer : potassium
Description : Why is there a concentration of water vapor and Venus is atmosphere around the Terra Aphrodite Mountains region?
Last Answer : Meant say “Why is the there a large concentration of water vapor in Venus’ atmosphere around…”. Typo due to text speak
Description : Carbon dioxide concentration in atmosphere. -Biology
Last Answer : answer:
Description : At present, the concentration of `CO_(2)` in the atmosphere is about:
Last Answer : At present, the concentration of `CO_(2)` in the atmosphere is about: A. 100ppm B. 240ppm C. 380 ppm D. 520 ppm
Description : In 2002 AD,CFC concentration of atmosphere was
Last Answer : In 2002 AD,CFC concentration of atmosphere was A. 261 ppt B. 326 ppb C. 1750 ppb D. 368 ppm.
Description : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t
Last Answer : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 ... true but reason is wrong D. Both are wrong
Description : What gas has increase in concentration in the atmosphere since the beginning of the industrial revolution?
Last Answer : Carbon dioxide
Description : The average concentration of carbon dioxide in the atmosphere is : (A) 0.03 ppm (B) 30 ppm (C)0.3 ppm (D) 300 ppm
Last Answer : (B) 30 ppm
Last Answer : (D) 300 ppm
Description : Pick out the wrong statement. (A) Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions (B) Inhalation of pollutant carbon monoxide results ... D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere
Last Answer : (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles
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 climate sensitivity parameter is defined as the rate of change of A. Surface temperature with albedo of earth B. Surface temperature with CO2 concentration in atmosphere C. Precipitation with earth’s temperature D. Surface temperature with radioactive forcing.
Last Answer : D. Surface temperature with radioactive forcing.
Description : The concentration of carbon dioxide in the atmosphere is in the range of: w) 1-10 parts per million x) 10-100 parts per million y) 100-1000 parts per million z) 1000-10,000 parts per million
Last Answer : ANSWER: Y -- 100-1000 PARTS PER MILLION (the exact number is 350 ppm as of the time of this article)
Description : If there is no carbon dioxide in the earth's atmosphere, the temperature of earth's surface would be – (1) dependent on the amount of oxygen in the atmosphere (2) higher than the present (3) less than the present (4) the same
Last Answer : (3) less than the present Explanation: If there is no carbon dioxide in the earth's atmosphere, the temperature of earth's surface would be less than the present because carbon emission in the atmosphere is one of the major causes of global warming.
Description : The greenhouse effect is caused by the higher level of which gas in the atmosphere? (1) Carbon monoxide (2) Carbon dioxide (3) Nitrous oxide (4) Sulphur dioxide
Last Answer : (2) Carbon dioxide Explanation: The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all ... the absence of the gases. The environmental effects of carbon dioxide are of significant interest.
Description : A person can jump higher on the moon's surface than on the earth because – (1) the moon's surface is rough (2) the acceleration due to gravity in moon is smaller than that on the earth. (3) the moon is cooler than earth (4) the moon has no atmosphere
Last Answer : (2) the acceleration due to gravity in moon is smaller than that on the earth. Explanation: The acceleration due to the gravitational field of moon (g' = 1.62631 ms-2) is one-sixth of the acceleration due ... earth. It is due to this reason; a man can jump six times higher on moon than on earth.
Description : The lift of a balloon is (A) Increased, as it rises to a higher altitude (B) Due to the weight of the atmospheric air, that it displaces (C) Not dependent on the temperature of the atmosphere (D) None of these
Last Answer : (B) Due to the weight of the atmospheric air, that it displaces
Description : Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by ... in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Last Answer : (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Description : Recall homework 2 in which we calculated emissivity for a single layer atmosphere. If the atmosphere were to suddenly become a perfect emitter (i.e., if e = 1 rather than e = 0.8), ... . (d) There would be initial warming followed by cooling as the planet moves toward radiative equilibrium.
Last Answer : (c) The surface temperature would be higher.
Description : Which of the following statements regarding evacuated tube collectors (ETC) are true? i) ETC is used for high temperatures upto 150oC ii) because of use of vacuum between two concentric glass tube, higher amount of heat is ... upon the ambient temperature i & iii b) ii & iii c) i & iv d) i & ii
Last Answer : d) i & ii
Description : Unethical behavior is often triggered by A. pressure from higher management to achieve goals. B. an organizational atmosphere that condones such behavior. C. both a & b D. a system of checks and balances
Last Answer : C. both a & b
Description : The greenhouse effect is caused by the higher level of which gas in the atmosphere ? (1) Carbon monoxide (2) Carbon dioxide (3) Nitrous oxide (4) Sulphur dioxide
Description : A person can jump higher on the moon’s surface than on the earth because : (1) the moon’s surface is rough (2) the acceleration due to gravity in moon is smaller than that on the earth. (3) the moon is cooler than earth (4) the moon has no atmosphere
Last Answer : the acceleration due to gravity in moon is smaller than that on the earth.
Description : If there is no carbon dioxide in the earth’s atmosphere, the temperature of earth’s surface would be (1) dependent on the amount of oxygen in the atmosphere (2) higher than the present (3) less than the present (4) the same
Last Answer : less than the present
Last Answer : Density is higher between ice and water: Density is higher.
Description : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` concentration conditions are favourable for dissociation of oxygen fr
Last Answer : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` ... Reason is False. D. If both Assertion & Reason are false.
Description : The concentration of DDT in the food chain, from lower to higher trophic levels:
Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. ... Decreases C. Increases or decreases D. Remains constant
Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. Remain same B. Decreases in glaciers C. Increases D. Unpredictable
Description : What process does the higher concentration of potassium than the surrounding blood plasma?
Last Answer : Feel Free to Answer
Description : In passive transport materials move from an area of higher concentration to an area of lower concentration through a cell membrane.?
Last Answer : yes
Description : An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice
Last Answer : Answer : C
Description : Concentration of the following is higher in intracellular fluid than in extracellular fluid: (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate
Last Answer : Answer : B
Description : The correct statement about serum inorganic phosphorous concentration is (A) It is higher in men than in women (B) It is higher in women than in men (C) It is higher in adults than in children (D) It is higher in children than in adults
Last Answer : Answer : D
Description : Strong solution having higher concentration
Last Answer : Ans. Hypertonic solution
Description : Relatively higher dose of theophylline is required to attain therapeutics plasma concentration in (a) Smokers (b) Congestive heart failure patients (c) Those receiving erythromycin (d) Those receiving cimetidine
Last Answer : Ans: A
Description : How different are oxyhemoglobin and hemoglobin?Where is it expected to find a higher concentration of oxyhemoglobin, in peripheral tissues or in the lungs?
Last Answer : Oxygen-bound hemoglobin is called oxyhemoglobin. In the lungs the oxygen concentration is higher and so there is a higher oxyhemoglobin concentration. In the peripheral tissues the situation is the ... lower and there is more free hemoglobin. The Circulatory System - Image Diversity: oxyhemoglobin
Description : Which of the following is caused by the higher concentration of Nitrogen and Phosphorous? (1) Eutrophication (2) Hardness (3) Alkalinity (4) Acidity
Last Answer : (1) Eutrophication Explanation: Higher concentration of Nitrogen and Phosphorus causes Eutrophication.
Description : Acid rain in the environment is caused by the Higher concentration of –
Last Answer : SO2 and NO2
Description : Osmosis is the flow of solution from higher concentration to a solution of lower concentration through whw $$Etlcakenancable membrane. What is incorrect in this state- ment?
Last Answer : The flow of solution is not possible through semi permeable membrane
Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary
Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids
Description : The movement of particles or molecules of a substance from the region of higher con- centration to a region of lower concentration is called........
Last Answer : Diffusion
Description : A multiple effect evaporator as compared to a single effect evaporator of the same capacity has (A) Lower heat transfer area (B) Lower steam economy (C) Higher steam economy (D) Higher solute concentration in the product
Last Answer : (C) Higher steam economy
Description : The following are true about the lens: a. it has a higher concentration of sodium than potassium b. it has the highest concentration of protein than other organs in the body c. 90% of proteins in the lens are water-soluble d. gluthatione is reduced in cataract
Last Answer : gluthatione is reduced in cataract
Description : In the lens: a. the potassium concentration is higher than that of the sodium b. the majority of the lens protein are water soluble c. glutathione is increased in the presence of cataract d. all above
Last Answer : all above
Description : The tear film: a. has a higher pH than the serum b. has a lower concentration of glucose than the serum c. the oily component is secreted by the meibomian glands d. all above
Description : Compared with intracellular fluid, extracellular fluid has, a. a greater osmolarity b. a higher protein concentration c. a lower chloride ion concentration d. a lower hydrogen ion concentration
Last Answer : a lower hydrogen ion concentration