Description : Soil of Western Rajasthan have a high content or (a) Aluminium (b) Calcium (c) Nitrogen (d) Phosphorus
Last Answer : Ans: (b)
Description : Phosphorus is generally fixed in acid soils in the form of— (A) Calcium Phosphate (B) Zn Phosphate (C) Aluminium Phosphate (D) None of these
Last Answer : (C) Aluminium Phosphate
Description : Tarai soils are generally deficient in:? a Zinc b Nitrogen c Phosphorus d Potash
Last Answer : a Zinc
Description : Which one of the following is a micro nutrient in the soil? A. Nitrogen B. Iron C. Phosphorus D. Calcium
Last Answer : B. Iron
Description : Of the following statements about the major soil types, the incorrect one is : (a) alluvial soils are easy to plough (b) red soils are rich in phosphorus, nitrogen and lime content ( ... regions which receive heavy seasonal rainfall (d) black soil is highly retentive of moisture and very productive
Description : Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium
Last Answer : c Aluminium
Description : Tarai soils are high in:? a Iron b Sodium c Organic matter d Calcium
Last Answer : c Organic matter
Description : The deficiency of this element leads to older leaves turning purple in colour on the underside. Identify the mineral? [a] Calcium [b] Phosphorus [c] Potassium [d] Iron [e] None of the above
Last Answer : [c] Potassium
Description : Which fertilizer is most beneficial for alkali soils? (a) Urea (b) Ammonium sulphate (c) Calcium ammonium nitrate (d) Ammonium nitrate
Last Answer : (c) Calcium ammonium nitrate
Description : Alkali soils are treated with gypsum to correct the deficiency of- (a) Sulphur (b) Calcium (c) Magnesium (d) Zinc
Last Answer : (b) Calcium
Description : Red soil is poor in which of the following nutrients ? (A) Phosphorus and Sulphur (B) Phosphorus and Nitrogen (C) Nitrogen and Zinc (D) Nitrogen and Potassium
Last Answer : (D) Nitrogen and Potassium
Description : What is the main function of zinc in the plants ? (A) Synthesis of nitrogen (B) Synthesis of phosphorus (C) Required for synthesis of Tryptophos (D) To increase activity of the boron
Last Answer : (C) Required for synthesis of Tryptophos
Description : Which of the following elements is not present in a nitrogenous base? (a) Hydrogen (b) Carbon (c) Phosphorus (d) Nitrogen
Last Answer : (c) Phosphorus
Description : The average carbon / nitrogen ratio of soils is generally...... (A) 25 : 1 (B) 5 : 1 (C) 30 : 1 (D) 14 : 1 (E) None of these
Last Answer : (C) 30 : 1
Description : Which of the following is incorrect? (a) Red soils are rich in iron (b) Black soils are rich in phosphorus nitrogen and organic matter (c) Alluvial soils are rich in potash but poor in phosphorus (d) Red soils are suitable for cultivation of pulses and coarse grains
Description : The color of Red soil is red due to the presence of the which of the following oxides? a. Ferric b. Aluminium c. Phosphorus d. Calcium
Last Answer : a. Ferric
Description : Match the following : A. Chernozems 1. Rich in calcium carbonate B. Black soil 2. Contains aluminium compound C. Laterite 3. Richest soils in the world D. Terra Rosa 4. Formed in limestone E. Alluvial soil 5. It is a mixture of clay, sand and ... 1 2 3 4 5 (b) 3 1 2 4 5 (c) 4 5 3 1 2 (d) 3 4 5 2 1
Description : Which of the following is/are not the characteristics of red soils? 1. They are derived from weathering of old crystalline and metamorphic rocks 2. They contain iron oxides 3. They have high water retention capacity 4. They ... nitrogen content (a) II and III (b) Only III (c) Only IV (d) III and IV
Last Answer : Ans: (d)
Description : The element which is required by the plant in large quantity – (1) Calcium (2) Nitrogen (3) Phosphorus (4) Sulphur
Last Answer : (2) Nitrogen Explanation: All plants need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. Plants use nitrogen by absorbing either nitrate or ammonium through the roots.
Description : The element absorbed both in cation and anion form is – (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus
Last Answer : (2) Nitrogen Explanation: Nitrogen, required in large quantities for healthy plant growth, is supplied either as a cation (ammonium) or an anion (nitrate). The ratio of these two forms of nitrogen in the nutrient solution can have large effects on both the rate and direction of pH changes with time.
Description : About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and (a) sulphur and magnesium (b) magnesium and sodium (c) calcium and phosphorus (d) phosphorus and sulphur.
Last Answer : (d) phosphorus and sulphur.
Description : If in the rice crop field, the leaves turn narrow, short, erect, and lemon yellowish and the entire field may appear yellowish, then the rice may be deficient of which nutrient? a. Calcium b. Potassium c. Nitrogen d. Phosphorus
Last Answer : c. Nitrogen
Description : The element which is required by the plant in large quantity : (1) Calcium (2) Nitrogen (3) Phosphorus(4) Sulphur
Last Answer : Nitrogen
Description : Bone is used as a fertiliser because it contains the plant nutrient (1) Nitrogen (2) Phosphorus (3) Sodium (4) Calcium
Last Answer : Phosphorus
Description : The element absorbed both in cation and anion form is (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus
Description : Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg
Last Answer : a Zn and Mn
Description : Which state of India leads in area under wheat crop? (A)Punjab (B) MP (C) UP (D) Rajasthan
Last Answer : (C) UP
Description : Which one of the following states has the largest area under Forest cover among all the states given in the list ? (A) Andhra Pradesh (B) Assam (C) Himachal Pradesh (D) Mizoram(E) Rajasthan
Last Answer : (A) Andhra Pradesh
Description : Merino of Rajasthan a pugal b chokla c chegu d beeta
Last Answer : b chokla
Description : The pyrite is mostly found in– a) Bihar b) Rajasthan c) Andhra Pradesh d) Maharashtra
Last Answer : d) Maharashtra
Description : Maximum producer of wool (a) Rajasthan (b) Haryana (c) U.P. (d) Punjab
Last Answer : (a) Rajasthan
Description : Which of the following is main beverage producing state? a) Rajasthan b) Kerala c) Himachal Pradesh d) None of these
Last Answer : c) Himachal Pradesh
Description : Alphonso mango of __ got GI tag a Rajasthan b Maharashtra c MP d UP
Last Answer : b Maharashtra
Description : (3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of ... mixed with water by way of a complex series of chemical reactions still only partly understood.
Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved
Description : Sugar-beet is an indicator plant for (A) Sodium (B) Molybdenum (C) Zinc (D) Phosphorus
Last Answer : (A) Sodium
Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus
Last Answer : (D) Phosphorus
Description : Plants absorb phosphorus in the form of (A) H2PO4 (B) PO4 (C) SSP (D) P
Last Answer : (A) H2PO4
Description : Application of Phosphorus and Sulphur increase a Better nodulation b Better growth c Better yield d All
Last Answer : d All
Description : Alluvial soils are found in : (A) Deserts (B) Forests (C) River delta (D) Mountains
Last Answer : (C) River delta
Description : Which micro-nutrient is most deficient in Indo-Gangatic alluvium soils? (a) Iron (b) Zinc (c) Copper (d) Manganese
Last Answer : (d) Manganese
Description : Use of gypsum is most beneficial in— (A) Saline soils (B) Alkali/Sodic soils (C) Acid soils (D) None of these
Last Answer : (B) Alkali/Sodic soils
Description : The problem of iron toxicity generally exists in— (A) Acid soils (B) Alkali soils (C) Saline soils(D) Saline-Alkali soils
Last Answer : (A) Acid soils
Description : A cabbage disease which is known to be more severe in acidic soils is? a. Club foot b. Yellows c. Black rot d. Damning off
Last Answer : a. Club foot
Description : For operating rotavator in trashy soils, which lines are better? (a) L-shaped (b) Hook shaped (c) Backward curved (d) Straight blade
Last Answer : (a) L-shaped
Description : ___ soil is also known by different names like Reh, Kallar and Usar? a Peaty and Marshy Soils b Saline and Alkaline Soil c Red soils d Alluvial Soil e Laterite Soil
Last Answer : c Red soils
Description : Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate
Last Answer : (3) Ammonium nitrate Explanation: A growth fertilizer will have a high N content and relatively low P and K content. Ammonium nitrate is the highest Nitrogen fertilizer you can buy, and it is ... formulations of growth fertilizers will contain 5, 6 or even 7 times more Nitrogen than anything else.
Description : Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate
Last Answer : Ammonium nitrate
Description : Select the correct statement about biodiversity. (a) The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals. (b) Large scale ... and endemism. (d) Conservation of biodiversity is just a fad pursued by the developed countries.
Last Answer : (c) Western ghats have a very high degree of species richness and endemism.