Description : Assertion: Black soils are black in colour due to diffusion of iron in crystalline and metamorphic rocks. Reason: They develop deep cracks during hot weather Options: (a) Both A and R are true and R is the correct explanation of ... of A.(c) A is true but B is false. (d) A is false but R is true.
Last Answer : (d) A is false but R is true.
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 : Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable ... OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3
Last Answer : Ans: (b)
Description : Under which climatic conditions do the laterite soils develop ? (a) Wet tropical Climate (b) Hot and dry Climate (c) Cold temperature Climate (d) Mediterranean type of Climate
Last Answer : Ans: (a)
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 : Which of the following soils is formed under typical monsoonal conditions? (a) Black Soils (b) Red Soils (c) Laterite Soils (d) None of these
Last Answer : Ans: (c)
Description : The land of maximum biodiversity is – (1) Tropical (2) Temperate (3) Monsoonal (4) Equatorial
Last Answer : (1) Tropical Explanation: A tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator (in the equatorial zone between the Tropic of ... and plant species on the planet. Two-thirds of all flowering plants can be found in rainforests.
Description : India has an endless growing season because (a) it experiences the monsoonal type of climate (b) the distribution of rainfall is uneven (c) temperatures throughout the year are favourable for growth of plants (d) its soil is very fertile the greater part being alluvial
Description : Which of the following characteristics is not true of alluvial soils? (a) These vary from sandy loam to clay in texture (b) These are generally rich in phosphorus but poor in potash (c) These are usually fine grained (d) These are by far the most fertile
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 : The world’s growing appetite for what food product is a leading cause of tropical deforestation? (1) Pork (2) Sugar (3) Lamb (4) Beef
Last Answer : (4) Beef Explanation: Researchers have recently focused on the economic agents which play a critical role in deforestation. Some such agents are: soy beans, beef, cattle, palm oil, ... world's growing appetite for beef has contributed significantly to the destruction of tropical rain forests.
Description : The rate of deforestation is high in – (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest
Last Answer : (3) Temperate zone Explanation: The rate of deforestation is high in Temperate Zone.
Description : “Grazing and fuel-wood collection are also responsible for deforestation in India.” Support the statement with suitable reasons. -SST 10th
Last Answer : (i) Overgrazing destroys the saplings and plants are tom out by the roots by animals. (ii) Overgrazing also leads to soil erosion. Soil erosion is one of the important factor for deforestation. (iii) While collecting fuel wood the locals also destroy the trees, which leads to deforestation.
Description : Where are tropical deciduous or monsoonal forests occur? -Do You Know?
Last Answer : answer:
Description : Where are tropical deciduous or monsoonal forests occur?
Last Answer : Burma, India, Thailand, Brazil
Description : The land of maximum biodiversity is (1) Tropical (2) Temperate (3) Monsoonal (4) Equatorial
Last Answer : Tropical
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
Description : Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished ... feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type
Description : The rains along the western coast of India are: (a) cyclonic (b) convectional (c) orographic (d) monsoonal
Description : The nature of the winter rainfall in north western India is : (a) convectional (b) orographic (c) monsoonal (d) cyclonic
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
Description : Spirochetosis is a disease of B A. cold climate B. tropical areas C. World Wide D. None of these
Last Answer : tropical areas
Description : The Peninsular plateau is a tableland composed of the old crystalline, igneous and metamorphic rocks. What do CRYSTALLINE ROCKES mean here? -Geography
Last Answer : Crystalline rock, any rock composed entirely of crystallized minerals without glassy matter. Metamorphic rocks are almost always crystalline; the term crystalline schists has been applied to indicate all rocks ... origin, and thus the term crystalline rocks may be taken to mean an igneous origin.
Description : Quartzite, a metamorphic stone is (A) Hard (B) Brittle (C) Crystalline (D) All the above
Last Answer : Answer: Option D
Description : Tarai soils are generally deficient in:? a Zinc b Nitrogen c Phosphorus d Potash
Last Answer : a Zinc
Description : Alluvial soils vary in nature from sandy loam to clay. They are generally - a. poor in potash and rich in phosphorus b. poor in both potash and phosphorus c. rich in both potash and phosphorus d. rich in potash and poor in phosphorus
Last Answer : d. rich in potash and poor in phosphorus
Description : Desertification can be checked by – (1) plugging gullies (2) checking over-grazing (3) contour ploughing (4) forming shelter belts
Last Answer : (2) checking over-grazing Explanation: Overgrazing is the major cause of desertification worldwide. Plants of semi-arid areas are adapted to being eaten by sparsely scattered, large, ... food and water availability. Such regular stock movement prevented overgrazing of the fragile plant cover.
Description : Identify the type of soil on the basis of the given characteristics - 1. They are rich in lime, iron, magnesia and alumina. 2. They are generally clayey, deep and impermeable. 3. They are mainly found ... the given alternatives - a. Laterite soil b. Red and yellow soil c. Saline soil d. Black soil
Last Answer : d. Black soil
Description : Black soils are ideal for cultivation of cotton as (a) their colour is black (b) they can retain moisture (c) they are made of lava (d) they are found on plateau regions
Description : Which type of climate(s) prevail(s) in the long corridor (Leeward side) of the Western Ghats and the Nilgiri Hills? [IAS 2007] (a) Tropical wet and dry climate (b) Tropical wet and dry with winter rain (c) Tropical semi-arid steppe (d) Subtropical monsoon rainforest
Description : The climate of India is: [UP PCS 1994] (a) tropical climate (b) sub-tropical climate (c) savanna type of climate (d) subtropical monsoon
Description : longitude is geographically significant to India because: [CPO SI 2003] (a) it determines the Indian standard time (b) it has a bearing on the tropical climate of India (c) it divides' India into eastern and western zones (d) it enables determining local time in eastern India
Description : The climate of India is mainly tropical because: [CDS 2002] (a) of the location of the Himalayas in its North (b) major part of India lies within the tropics (c) of the overpowering influence of India Ocean (d) of the seasonal influence of jet streams
Description : The climate of North America is influenced during winter by the – (1) Polar airmasses (2) Warm airmasses (3) Continental airmasses (4) Tropical airmasses
Last Answer : (4) Tropical airmasses Explanation: Maritime tropical (mT) air masses affecting North America most often originate over the warm water of the Gulf of Mexico, the Caribbean Sea, or the adjacent ... Caribbean, and adjacent Atlantic are more common and cover a much wider area of the continent.
Description : 82 longitude is geographically significant to India because – (1) it determines the Indian standard time (2) it has a bearing on the tropical climate of India (3) it divides India into eastern and western zones (4) it enables determining local time in eastern India
Last Answer : (1) it determines the Indian standard time Explanation: Indian Standard Time (IST) is the time observed throughout India and Sri Lanka, with a time offset of UTC+05:30. India does not ... (near Allahabad in the state of Uttar Pradesh) which is nearly on the corresponding longitude reference line.
Description : Which of the following does not have influence over the climate in India? (a) Nearness to Equator (b) Presence of Indian Ocean (c) Monsoons (d) Ocean currents
Description : Which of the following does not have an influence over the climate in India? (1) Monsoons (2) Ocean currents (3) Nearness to equator (4) Presence of Indian ocean
Last Answer : (2) Ocean currents Explanation: India's geography and geology are climatically pivotal: the Thar Desert in the northwest and the Himalayas in the north work in tandem to effect a culturally and economically ... regions in India hot in summer. Ocean current do not any role in the climate of India.
Description : The increased incidence of floods in recent times in North India is due to – (1) increase in the annual rainfall, (2) increase in the silting of dams, (3) increased deforestation in the catchment area, (4) None of these
Last Answer : (3) increased deforestation in the catchment area, Explanation: The frequency and severity of flooding in the Gangetic plain has steadily increased in recent years. Deforestation of the Terai appears to be one of the major causes.
Description : The Himalayan region is poor in mineral resources because (a) it is made up of crystalline rocks (b) displacement of rock strata has disturbed the arrangement of rocks and made it ... minerals (d) the terrain makes exploitation of minerals difficult and very costly due to transport difficulties
Description : The Himalayan region is poor in mineral resources because: [IAS 2004] (a) it is made of crystalline rocks (b) the displacement of rock strata has disturbed the arrangement of rock and ... minerals (d) the terrain makes exploitation of minerals difficult and very costly due to transport difficulties
Description : "Reserved Forests" are forests (a) reserved for hunting (b) reserved for commercial exploitation and prohibited for grazing (c) reserved for local use (d) reserved for growing medicinal herbs
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 : (2) Checking soil erosion Explanation: Some of the indirect uses of forests include: prevention and control of soil erosion, flood control, checks on spread of deserts, increase of soil fertility ... of forest cover leads to increased runoff of rain water and its diminished seepage in soil.
Description : In Central retinal artery occlusion, a cherry red spot is due to: a. Hemorrhage at macula b. Increased choroidal perfusion c. Increase in retinal perfusion at macula d. The contrast between pale retina and reddish choroids
Last Answer : ANSWER: D
Description : The cement becomes unsound by the presence of excess (A) Sulphur (B) Magnesia (C) Lime (D) All of these
Description : The rate of deforestation is high in (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest
Last Answer : Temperate zone
Description : Which of the following are true in respect of alluvial soil ? 1. Generally confined to river basins 2. It has been deposited by rivers 3. It is rich in phosphorus and poor in potash 4. It is the most fertile soil (a) I and II (b) III and IV (c) I, II and IV (d) I, II and III
Description : For the cultivation of Tobacco the soil should be rich in – (1) calcareous matter (2) nitrogen (3) organic content (4) potash
Last Answer : (4) potash Explanation: Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the ... such as plant remains, and this was the major historical source for it before the industrial era.
Description : For which type of fertilizer, India is fully dependent on imports – (1) Nitrogen Fertilizer (2) Phosphatic Fertilizer (3) Potash Fertilizer (4) None of these
Last Answer : (3) Potash Fertilizer Explanation: Potash fertilizer is not manufactured in India.
Description : The Indo-Gangetic Plains of India are fertile due to (a) the heavy and timely rains and forests (b) alluvial soils brought by the rivers from the mountains (c) hard labour of the farmers over the generations (d) better irrigation facilities
Description : By adding 1 ml of Orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution (A) Yellowish (B) Greenish (C) Bluish (D) Reddish
Last Answer : (A) Yellowish