Description : Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron
Last Answer : b. Magnesium and Calcium
Description : When the plants are grown in magnesium deficient but urea rich soil, the symptoms expressed are (a) yellowish leaves (b) colourless petiole (c) dark green leaves (d) shoot apex die.
Last Answer : (a) yellowish leaves
Description : Insectivorous plants grow in soil which is deficient in – (1) Nitrogen (2) Sodium (3) Calcium (4) Magnesium
Last Answer : (1) Nitrogen Explanation: Carnivorous or insectivorous plants grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs and rock out-croppings. ... advantage. The capture of insects provides such plants with a supplemental source of essential nutrients.
Description : Insectivorous plants grow in soil deficient in - (1) Calcium (2) Nitrogen (3) Magnesium (4) Water
Last Answer : (2) Nitrogen Explanation: Insectivorous plants grow in soil deficient in nitrogen.
Description : Insectivorous plants grow in soil deficient in (1) Calcium (2) Nitrogen (3) Magnesium (4) Water
Last Answer : Nitrogen
Description : Pregnant women usually become deficient in - (1) Sodium and Calcium (2) Iron and Sodium (3) Calcium and Iron (4) Magnesium and Iron
Last Answer : (3) Calcium and Iron Explanation: When a woman becomes pregnant her body undergoes many physiological changes. Her hormone levels change not only to support the pregnancy but also to help ... only 15 percent to 20 percent, the risk of developing iron-deficiency anemia increases during pregnancy.
Description : Pregnant women usually become deficient in (1) Sodium and Calcium (2) Iron and Sodium (3) Calcium and Iron (4) Magnesium and Iron
Last Answer : Calcium and Iron
Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc
Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.
Description : Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.
Last Answer : (c) phosphorus, potassium, sulphur, calcium
Last Answer : Calcium and Magnesium
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 : Intestinal absorption of magnesium is increased in (A) Calcium deficient diet (B) High calcium diet (C) High oxalate diet (D) High phytate diet
Last Answer : Answer : A
Description : Magnalium is an alloy of (1) Aluminium and Magnesium (2) Magnesium and Tin (3) Aluminium and Zinc (4) Manganese and Magnesium
Last Answer : Aluminium and Magnesium
Description : Insulin exists in polymeric forms, for polymerization it requires (A) Calcium (B) Magnesium (C) Manganese (D) Zinc
Last Answer : Answer : D
Description : The enzyme δ-aminolevulinate dehydratase contains (A) Zinc (B) Manganese (C) Magnesium (D) Calcium
Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.
Last Answer : (b) calcium
Last Answer : b) calcium
Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese
Last Answer : magnesium
Description : Which element is located at the centre of the porphyrin ring in chlorophyll? (a) Calcium (b) Magnesium (c) Potassium (d) Manganese
Last Answer : (b) Magnesium
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 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 : Menke’s disease is due to an abnormality in the metabolism of (A) Iron (B) Manganese (C) Magnesium (D) Copper
Description : The central structure of B12 referred to as corrin ring system consists of (A) Cobalt (B) Manganese (C) Magnesium (D) Iron
Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum
Last Answer : (d) Iron, copper, molybdenum
Description : Enzyme catalase has non-protein metal asA-magnesium B-manganese C-iron D-zinc
Last Answer : iron
Description : Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron. (A) Manganese (B) Phosphorous (C) Magnesium (D) Chromium
Last Answer : Option C
Description : Milk is deficient in (A) Calcium (B) Iron (C) Sodium (D) Potassium
Last Answer : Answer : B
Description : Which of the following is false? (a) Mica is usually found in metamorphic and igneous rocks (b) Aluminium has the advantage over iron as it is resistant to corrosion (c) line is mostly used in galvanising iron and steel goods (d) Manganese is largely used in making fertilizers
Last Answer : Ans: (d)
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 : Philosopher’s wool is chemically - (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide
Last Answer : (3) Zinc oxide Explanation: Philosopher's Wool is chemically zinc oxide.
Description : Micanite is a form of (A) Built up mica. (B) Hydrated potassium aluminium silicate. (C) Magnesium mica. (D) Calcium mica.
Last Answer : (A) Built up mica.
Description : Philosopher’s wool is chemically (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide
Last Answer : Zinc oxide
Description : The term soil impoverishment relates to which one of the following? a. Soil erosion b. Soil deposition c. Soil getting very deficient in plant nutrients d. Soil getting enriched with plant nutrients
Last Answer : c. Soil getting very deficient in plant nutrients
Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide
Last Answer : a)sulphur dioxide
Description : Which of the following oxides is not present in hematite iron ore? (A) Titanium oxide (B) Calcium oxide (C) Cobalt oxide (D) Manganese oxide
Last Answer : (C) Cobalt oxide
Description : Classify the following materials as metals and non-metals : Hydrogen, Sulphur, Selenium, Manganese, Calcium, Platinum, Gold, Silica, Polyester, Wood, Glass, Iron
Last Answer : Metals: calcium , manganese, platinum, gold , iron Non- metals: hydrogen, Sulphur, silica, polyester, wood, glass, selenium
Description : The main cause of leaf mottle disease in citrus is due to the deficiency of - a) Manganese b) Sulphar c) Zinc d) Iron
Last Answer : c) Zinc
Description : Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium
Last Answer : (4) Aluminium Explanation: Aluminum is the most abundant metal in the Earth's crust, and the third most abundant element therein, after oxygen and silicon. It makes up about 8% by weight of the Earth's solid ... of Earth's volume Oxygen is 46.6%, Silicon 27.77%, Aluminum is 8.09% and iron is 5%.
Description : The fire clay contains pure (A) Lime (B) Oxide of iron (C) Hydrated aluminium silicate (D) Magnesium
Last Answer : Answer: Option C
Description : A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride
Description : Which among the following elements increases the absorption of water and calcium in plants? (1) Manganese (2) Boron (3) Copper (4) Molybdenum
Last Answer : (2) Boron Explanation: Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
Description : Which among the following elements increases the absorption of water and calcium in plants ? (1) Manganese (2) Boron (3) Copper (4) Molybdenum
Last Answer : Boron
Description : Which of the following can be used to correct acidic soil? (a) Gypsum (b) Lime (c) Vegetable compost (d) Calcium superphosphate
Last Answer : Ans: (b)
Description : Insectivorous plants grow in: (a) Nitrogen rich soil (b) Nitrogen deficient soil (c) Potassium deficient soil (d) Carbohydrate rich soil
Last Answer : Ans. ((b))
Description : Azatobacter species found in acidic soil is a. Azatobacter chrococcum b. A. agillis c. A. beijerinkia d. None of these
Last Answer : c. A. beijerinkia
Description : White alkali soils are — a. Acidic soil b. Sodic soil c. Saline soil d. Saline Sodic soil
Last Answer : c. Saline soil
Description : Haemoglobin formation needs both (A) Iron and Zinc (B) Iron and Calcium (C) Iron and Copper (D) Iron and Magnesium
Last Answer : Answer : C
Description : Milk is not considered a balanced diet now-a-days because of the absence of : (1) Magnesium and Vitamin D (2) Iron and Vitamin C (3) Calcium and Vitamin C (4) Iron and Vitamin A
Last Answer : (2) Iron and Vitamin C Explanation: A balanced diet means getting the right types and amounts of foods and drinks to supply nutrition and energy for maintaining body cells, tissues, and organs, and ... , and chlorine are all included as minerals and they typically occur at concentration of 5-40 mM.
Description : Mineral constituent of chlorophyll is - (1) Iron (2) Magnesium (3) Calcium (4) Potassium
Last Answer : (2) Magnesium Explanation: Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for ... It is found in the chloroplasts of green plants, and is what makes green plants, green.