Description : Humus is a type of – (1) fossil seen on the rocks (2) decaying organic matters in soil (3) fertilizers applied in soil (4) special growth found in plants
Last Answer : (2) decaying organic matters in soil Explanation: Humus refers to the decomposed and partly decomposed organic matter or animal and vegetation originally present in the soil.
Description : High quality crop soil requires humus as a major component. Which of the following best describes the composition of humus w) fine sand particles x) decaying organic matter y) mineral like clay matter z) chemical fertilizers
Last Answer : ANSWER: X -- DECAYING ORGANIC MATTER
Description : Alluvial soils are rich soil for crop cultivation but are poor in (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : nitrogen and humus
Description : The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids
Last Answer : Humus
Description : Mountain soil contains a lot of— (1) humus (2) clay (3) coase material (4) iron and aluminium salt
Last Answer : humus
Description : Alluvial soils are usually (i) Rich in nitrogen (ii) Poor in humus (iii) Highly fertile (iv) Easy to plough (1) (i), (ii) and (iv) (2) (ii), (iii) and (iv) (3) (i), (iii) and (iv) (4) (i), (ii) and (iii)
Last Answer : (i), (ii) and (iii)
Description : Mushroom Rocks are the typical land forms seen in (1) River Valleys (2) Mountain tops (3) Coastal areas (4) Deserts
Last Answer : Deserts
Description : Consider the following statements about the soils of India : [IAS 2004] 1. High temperature during most of the year retards formation of humus 2. Soils which have humus require regular application of chemical fertilizers to remove nitrogen ... ) 1 and 2 (b) 1, 3 and 4 (c) 2 and 3 (d) 2 and 4
Last Answer : Ans: (b)
Description : Black soil derived from volcanic rocks with humus is suitable for growing (a) rice (b) wheat (c) cotton (d) grapes
Last Answer : Ans: (c)
Description : Which is the chief characteristic of the soil of the IndoGangetic plain? (a) It is derived from Himalayan rocks (b) It is rich in humus (c) It is formed of peninsular rocks (d) It is derived from local rocks
Last Answer : Ans: (a)
Description : Mica is found in which one of the following pairs of rocks ? (1) Slate- Sandstone (2) Schist-Gneiss (3) Limestone-Sandstone (4) Shale- Limestone
Last Answer : Schist-Gneiss
Description : For the cultivation of Tobacco the soil should be rich in (1) calcareous matter (2) nitrogen (3) organic content (4) potash
Last Answer : potash
Description : Natural organic fertilizers are found to be better then chemical fertilizers because – (1) chemical fertilizers are less productive (2) organic fertilizers are more productive (3) organic fertilizers sustain soil productivity (4) chemical fertilizers are toxic
Last Answer : (3) organic fertilizers sustain soil productivity Explanation: Organic fertilizers like compost are either soil conditioners or growth enhancers. They sustain crop yields and soil productivity in intensive cropping systems which leave low organic residues on the soil.
Description : Natural organic fertilizers are found to be better then chemical fertilizers because (1) chemical fertilizers are less productive (2) organic fertilizers are more productive (3) organic fertilizers sustain soil productivity (4) chemical fertilizers are toxic
Last Answer : organic fertilizers sustain soil productivity
Description : Pheretima and its close relatives derive nourishment from (a) sugarcane roots (b) decaying fallen leaves and soil organic matter (c) soil insects (d) small pieces of fresh fallen leaves of maize, etc.
Last Answer : (b) decaying fallen leaves and soil organic matter
Description : Alluvial soils are rich soil for crop cultivation but are poor in– (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : (2) nitrogen and humus Explanation: Alluvial soils are fertile soils composed of sediments deposited by rivers and the waves. However, they are usually deficient in nitrogen and ... With suitable irrigation, fertilizers and proper agricultural practices, alluvial soils are generally very fertile.
Description : The organic matter present in soil is known collectively as – (1) Hydrocarbons (2) Podsols (3) Humus (4) Colloids
Last Answer : (3) Humus Explanation: The organic matter present in soil is known collectively as humus. Humus is fully decomposed and finely divided organic matter. Dune is a hill or ridge of sand accumulated and sorted by wind action.
Description : Which one of the following statement not true for organic manure ? a) It enhances water holding capacity of soil . b) It has a balance of all plant nutrients c) It provides humus to soil. d) It improves texture of soil.
Last Answer : b) It has a balance of all plant nutrients
Description : Winds blowing constantly in one direction in rocky deserts form (1) Chimneys (2) Mushrooms rocks (3) Yardangs (4) Demoiselles
Last Answer : Yardangs
Description : When Granite rocks get metamorphosed, they form (1) Quartzite (2) Gneiss (3) Marble (4) Slate
Last Answer : Gneiss
Description : Granite, quartzite areas have upstanding look because (1) mechanically wealthered faster (2) these rocks are resistant to all kinds of erosion (3) these rocks are not easily croded (4) not easily worn down
Last Answer : not easily worn down
Description : The rapid sliding of large masses of bed rocks is called : (1) Landslide (2) Earthquake (3) Weathering (4) Mass wasting
Last Answer : Landslide
Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top. because (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last Answer : the kinetic energy of the falling water is converted into heat.
Description : Earthquake is caused by (1) disturbance of earth surface (2) adjustment of layers of earth’s crust (3) breakage of rock system (4) upliftment of rocks
Last Answer : disturbance of earth surface
Description : Which one of the following is the example of sedimentary rocks ? (1) Loess (2) Basalt (3) Granite (4) Gabbro
Last Answer : Loess
Description : Metamorphic rocks originate from— (1) igneous rocks (2) sedimentary rocks (3) both igneous and sedimentary rocks (4) None of these
Last Answer : both igneous and sedimentary rocks
Description : Shale is metamorphosed into which of the following rocks? (1) Graphite (2) Gneiss (3) Marble (4) Slate
Last Answer : Slate
Description : Consider the following geological phenomena : I. Development of a fault II. Movement along a fault III. Impact produced by a volcanic eruption IV. Folding of rocks Which of the above causes earthquakes ? (1) I, II and III (2) II and IV (3) I, III and IV (4) I to IV
Last Answer : I, II and III
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 : Which of the following listed is not a feature of organic farming? (1) The non-use of chemical fertilizers and pesticides (2) Soil is nurtured for furture use by maintaining micro-or-danisms tin (3) Use of synthetic fertilizers (4) Very less energy consumption
Last Answer : (3) Use of synthetic fertilizers Explanation: Organic farming is a form of agriculture that re-lies on techniques such as crop rotation, green manure, compost, and biological pest ... but it excludes the use of synthetic petrochemical fertilizers and pesticides, plant growth regulators, etc.
Description : Which of the following listed is not a feature of organic farming ? (1) The non-use of chemical fertilizers and pesticides (2) Soil is nurtured for furture use by maintaining micro-organisms (3) Use of synthetic fertilizers (4) Very less energy consumption
Last Answer : Use of synthetic fertilizers
Description : Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms
Last Answer : the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms
Description : Name the condition which influences the development of plants into distinctive forms. (1) Climatic conditions (2) Soil conditions (3) Environmental conditions (4) Social conditions
Last Answer : Climatic conditions
Description : Which one of the following is the indirect use of forests ? (1) Medicinal plants (2) Checking soil erosion (3) Building material (4) Grazing
Last Answer : Checking soil erosion
Description : A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as (1) Artisian well (2) Spring (3) Hot spring (4) Geyser
Last Answer : Artisian well
Description : Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : measure the depth of the sea
Description : Which one the following soils is used for the production of bricks ? (1) Peaty and organic (2) Saline (3) Laterite (4) Red and yellow
Last Answer : Red and yellow
Description : Which of the following is an organic rock ? (1) Marble (2) Coal (3) Granite (4) Slate
Last Answer : Coal
Description : Which decaying vegetation produces organic acids which causes a breakdown of minerals? -Do You Know?
Last Answer : answer:
Description : Marsh gas, formed from decaying organic matter and in coal mines is (a) carbon dioxide (b) methane (c) ethane (d) carbon monoxide
Last Answer : Ans:(b)
Description : Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter? (a) Larvae could appear in decaying organic matter. (b) Microbes did not ... matter. (d) Meat was not spoiled, when heated and kept sealed in a vessel.
Last Answer : (d) Meat was not spoiled, when heated and kept
Description : Vergreen type Forests are found in : (1) Mediterranean region (2) Monsoon climatic area (3) Desert region (4) Equatorial region
Last Answer : Equatorial region
Description : Name the continent where ‘Tundra’ type of climate is not found (1) Europe (2) Asia (3) Africa (4) North America
Last Answer : Africa
Description : Which of the following is a Biological method of soil conservations ? (1) Contour farming (2) Contour terracing (3) Gully control (4) Basin listing
Last Answer : Contour farming
Description : The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.
Last Answer : Zone of soil, water and air around earth capable of supporting the flora and fauna.
Description : A natural region has the similarity of (1) climate and natural vegetation (2) climate and occupation (3) soil and drainage (4) economic base and reces
Last Answer : climate and natural vegetation
Description : The distribution of characteristic vegetation of a region is determined mainly by (1) soil, water and temperature (2) water, greenhouse effect and altitude (3) wind, water and latitude (4) sunlight, water and wind
Last Answer : soil, water and temperature
Description : The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere
Last Answer : Biosphere
Description : Salination of soil is caused by (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation
Last Answer : excess irrigation
Description : Black soil is also known by which of the following name ? (1) Khadar Soil (2) Bangar Soil (3) Alluivial Soil (4) Regur soil
Last Answer : Regur soil