Description : Photorespiration is favoured by (a) high temperature and low O2 (b) high humidity and temperature (c) high O2 and low CO2 (d) high CO2 and low O2.
Last Answer : (c) high O2 and low CO2
Description : Guttation is the result of (a) diffusion (b) transpiration (c) osmosis (d) root pressure.
Last Answer : (d) root pressure.
Description : Guttation is mainly due to (a) root pressure (b) osmosis (c) transpiration (d) imbibition.
Last Answer : (a) root pressure
Description : In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by (A) High temperature (B) Low pressure (C) Low temperature only (D) Both low temperature and high pressure
Last Answer : (D) Both low temperature and high pressure
Description : In the reaction, represented by, 2SO2 + O2 ⇌ 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured by (A) Low temperature (B) High pressure (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the (A) Low pressure and high temperature (B) Low pressure and low temperature (C) High pressure and low temperature (D) High pressure and high temperature
Last Answer : (B) Low pressure and low temperature
Description : Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O ⇌ CO2 + H2, by (A) Low temperature and high pressure (B) Low temperature and low pressure (C) High temperature and high pressure (D) High temperature and low pressure
Last Answer : (A) Low temperature and high pressure
Description : Which of the following chemical reactions will be favoured by low pressure? (A) 2HI ⇌ H2 + I2 (B) N2O2 ⇌ 2NO2 (C) N2 + O2 ⇌ 2NO (D) None of these
Last Answer : (B) N2O2 ⇌ 2NO2
Description : he soil which is found in the areas having heavy rainfall and high humidity, contains large quantity of organic matter and heavy and black in colour – a. Black soil b. Peat soil c. Forest soil d. Laterite soil
Last Answer : b. Peat soil
Description : The reactions of high molecularity are rare, because (A) Of very large activation energy of many bodies (B) Of low probability of many body collisions (C) Many body collisions are not favoured energetically (D) Of requirement of very large concentration for such reactions
Last Answer : (B) Of low probability of many body collisions
Description : How much air humidity can cause fungi or insects in fish food ?
Last Answer : If the humidity is more than 65% , fungi or insects can grow in fish food.
Description : What is the essential growth of and quantities development of fruits? a. Humidity b. Wind c. Solar Radiation d. Temperature e. Water
Last Answer : d. Temperature
Description : Cracking is (A) An exothermic reaction (B) An endothermic reaction (C) Favoured at very low temperature (D) None of these
Last Answer : (B) An endothermic reaction
Description : Detonation is favoured by a. Low crankshaft speed at full throttle b. .Higher loads c. Both (a) and (b) d. None of the above
Last Answer : c. Both (a) and (b)
Description : Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by (A) Decreasing the pressure (B) Decreasing the temperature (C) Increasing the temperature (D) None of these
Last Answer : (C) Increasing the temperature
Description : The effect of increasing pressure on the gaseous equilibrium of the reaction2X + 3Y ⇌ 3X + 2Y indicates that (A) Pressure has no effect (B) Backward reaction is favoured (C) Forward reaction is favoured (D) None of the
Last Answer : (A) Pressure has no effect
Description : How does the high/low temperatures, the barometric pressure, and the relative humidity influence what kinds of clouds are out?
Last Answer : answer:Yikes. The formation of clouds is an application of the First Law of Thermodynamics. According to the First Law, a change in the internal energy of a system can be due to the ... for air under these conditions is the moist adiabatic lapse rate and is approximately -5oC per kilometer.
Description : What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity
Last Answer : (4) High temperature associated with high humidity Explanation: The months of OctoberNovember mark a period of transition from hot rainy season to cold dry winter conditions. This period is ... temperature and high humidity, weather becomes oppressive. This phenomenon is known as 'October heat.
Description : Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity
Last Answer : (1) Due to low air pressure Explanation: Low air pressure is usually the most significant limiting factor in high mountain regions. The percentage of oxygen in the air at 3.2 km is ... high altitudes, the lower air pressure makes it more difficult for oxygen to enter our vascular systems.
Last Answer : Due to low air pressure
Description : Absorption of phosphorous from diet is favoured by (A) Moderate amount of fat (B) Acidic environment (C) High calcium content (D) High phytic acid
Last Answer : Answer : B
Description : Dephosphorization of molten pig iron is favoured by (A) Oxidising and basic slag (B) Reducing and basic slag (C) High activity co-efficient of phosphorous in metal (D) Oxidising and neutral slag
Last Answer : Option B
Description : What is the difference between transpiration and guttation? -Biology
Last Answer : Transpiration and guttation are the two important process of removal of excess water from the plants. However, the two processes are different from each other. Transpiration is the removal of water ... loss of water from the plants. These were a few difference between transpiration and guttation.
Description : Differentiate between Guttation and Transpiration. -Biology
Last Answer : answer:
Description : What is the main cause of guttation in plants? -Biology
Description : How does guttation occur? -Biology
Description : How to stop guttation. -Biology
Description : $ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Loss of water droplets from hydathodes is called Guttation.
Last Answer : $ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Loss of water droplets from hydathodes is ... wrong D. If both As and R are wrong.
Description : The process guttation is a result of
Last Answer : Root pressure
Description : The shade of a tree is cooler than the shade of a roof due to: (a) Respiration (b) Photosynthesis (c) Transpiration (d) Guttation
Last Answer : Ans. ((c))
Description : Pmcess of water exudation through hydathodes is known as: (a) Guttation (b) Transpiration (c) Evaporation (d) Bleeding
Last Answer : Ans. ((a))
Description : Guttation occurs through specialised pores known as..
Last Answer : Hydathodes
Description : What is difference between the processes of transpiration and guttation?
Last Answer : During transpiration water is removed in the form of water vapours and during guttation water is removed in the form of water droplets.
Description : Main function of lenticel is (a) transpiration (b) guttation (c) gaseous exchange (d) bleeding
Last Answer : (c) gaseous exchange
Description : Guard cells help in (a) transpiration (b) guttation (c) fighting against infection (d) protection against grazing.
Last Answer : (a) transpiration
Description : Maximum loss of water from the plants occurs due to a. Transpiration b. Evaporation c. Guttation d. Respiration
Last Answer : a. Transpiration
Description : What is guttation?
Last Answer : Ans: it is loss of water in the form liquid through hydathodes.
Description : Wilting of plants occurs due to excessive : (1) Respiration (2) Guttation (3) Absorption (4) Transpiration
Last Answer : Transpiration
Description : Growth of early emerging leaves becomes faster because of- (a) Cell division and cell enlargement (b) Stunt growth of plants (c) Faster Photosynthesis (d) Low pressure of outer atmosphere
Last Answer : (b) 15°C – 40°C
Description : What is the lack of root growth ?
Last Answer : Root growth is reduced due to lack of nitrogen.
Description : Which of the following control the root initiation, cell elongation and apical dominance? (A)Auxins (B) ABA (C) Gibberellins (D) Ethylene
Last Answer : (D) Ethylene
Description : Agrostology is the study of: (A) Root (B) Grasses (C) Flower (D) Fruit
Last Answer : (B) Grasses
Last Answer : (B) ABA
Last Answer : (A) Root
Description : In case of Drip irrigation which of the following advantage is observed ? (A) It saves water (B) Root system of plant remains in upper layer of soil (C) Plastic tubes are not harmed by rats (D ... drip irrigation is very long (E) Where there is lot of rainfall, there are no limitation to such system
Last Answer : (C) Plastic tubes are not harmed by rats
Description : Among the critical stages, the most critical stage of wheat crop for irrigation is—(A) CRI–Crown Root Initiation stage (B) Tillering stage (C) Jointing stage (D) Flowering stage
Last Answer : (A) CRI–Crown Root Initiation stage
Description : The edible part of potato is: a. Root b. Tuber c. Rhizome d. Corm
Last Answer : Tuber
Description : Maximum root zone depth for Maize (a) 200-300 mm (b) 400-600 mm (c) 500-600 mm (d) 350- 450 mm
Last Answer : (b) 400-600 mm
Description : Why is road transport favoured in the northern plains of India ? -Geography
Last Answer : Road transport is favoured in the northern plains of India because this is agriculturally rich region and roads’ ate required to transport huge amount of fertilizers, food grains from one region to another. Secondly this is a levelled region where construction of roads is easy.
Description : Why is road transport favoured in the northern plains of India: -SST 10th
Last Answer : Road transport is favoured in the Northern plains due to its fertile soils and the high density of population.