Description : Smog is a combination of – (1) air and water vapour (2) water and smoke (3) fire and water (4) smoke and fog
Last Answer : (4) smoke and fog Explanation: The term "smog' was first used in London during the early 1900's to describe the combination of smoke and fog. What we typically call "smog" today is a mixture of pollutants but is primarily made up of groundlevel ozone.
Description : Smog is a combination of – (1) Air and water vapours (2) Water and smoke (3) Fire and water (4) Smoke and fog
Last Answer : (4) Smoke and fog Explanation: Smog is a type of air pollution; the word "smog" was coined in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky ... amounts of coal within a city; this smog contains soot particulates from smoke, sulfur dioxide and other components.
Description : Condensation is the reverse of (1) Vaporization (2) Smog (3) Cirrus cloud (4) Fog
Last Answer : Vaporization
Description : Smog is (A) Nothing but black smoke (B) A combination of smoke and fog (C) A liquid particle resulting from vapor condensation (D) A solid particle e.g. fly-ash
Last Answer : (B) A combination of smoke and fog
Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Natural sources of air pollution are (1) Forest fires (2) Volcanic eruptions (3) Dust storm (4) Smoke from burning dry leaves
Last Answer : Volcanic eruptions
Description : Which of the following asborbs part of the insolation and preserves earth’s radiated heat? (1) Oxygen (2) Nitrogen (3) Water vapour (4) Carbon-di-oxide
Last Answer : Water vapour
Description : Condensation is the reverse of – (1) Vaporization (2) Smog (3) Cirrus cloud (4) Fog
Last Answer : (1) Vaporization Explanation: Condensation is the change of physical state of matter from gaseous phase into liquid phase and is the reverse of vaporization. When the relative humidity reaches 100 per cent, the air is completely saturated. The air temperature is said to be as dew-point.
Description : Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog
Last Answer : ANSWER: Y -- TORNADO
Description : Tides in the sea have stored in them : (1) Hydraulic energy (2) Kinetic energy (3) Gravitational potential energy (4) A combination of all the above three forms of energy
Last Answer : Gravitational potential energy
Description : Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’? (A) Dust & mists (B) Smoke & fumes (C) Photochemical smog & soot (D) None of these
Last Answer : (D) None of these
Description : Ring of Fire is found commonly in _____ (1) Pacific Ocean (2) Atlantic Ocean (3) Indian Ocean (4) Arctic Ocean
Last Answer : Pacific Ocean
Description : The ‘Pacific Ring of Fire’ is associated with (1) oil well fires (2) thermal power station (3) volcanoes and earthquakes (4) forest fires
Last Answer : volcanoes and earthquakes
Description : Amount of water vapour in the atmosphere is measured in terms of – (1) Humidity (2) Droplets (3) Smog (4) All of the above
Last Answer : (1) Humidity Explanation: Humidity is the amount of water vapor in the air. Water vapor is the has phase of water and is invisible. Humidity indicates the likelihood of precipitation, dew, or ... of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin.
Description : Amount of water vapour in the atmosphere is measured in terms of (1) Humidity (2) Droplets (3) Smog (4) All of the above
Last Answer : Humidity
Description : Which of the following colour is least scattered by fog, dust or smoke : A. Violet B. Blue C. Red D. Yellow
Last Answer : C. Red
Description : Smog and Smoke
Last Answer : Smog - mixture of smoke and fog Smoke - visible vapor given off by burning material;
Description : Differentiate between the following pairs a. periscope & pyrometer b. cell & battery c. perimeter & altimeter d. pelage and plumage e. smog and smoke
Last Answer : a. periscope & pyrometer periscope is an optical instrument pyrometer is a meter used to measure high temperature b. cell & battery Cell is a small unit/device that delivers an electric ... visibility and is hazardous to health Smoke are the thin fine particles usually result from the combustion
Description : The fur of the animals living in colder regions (1) protects them from water (2) traps the air and keeps them warm (3) protects them from enemies (4) makes them appear beautiful
Last Answer : traps the air and keeps them warm
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 : 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 : Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish
Last Answer : rivers wash away salts from earth and pour them into the sea
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 : The humidity of air depends on (1) Temperature (2) Location (3) Weather (4) All of the above
Last Answer : All of the above
Description : The vertical movement of air is termed as (1) wind (2) air current (3) air turbulence (4) air mobility
Last Answer : air current
Description : The well through which water comes out through hydraulic pressure is called (1) Ordinary well (2) Tube well (3) Deep tube well (4) Artesian well
Last Answer : Artesian well
Description : Which of the following exhibits unidirectional flow in an ecosystem ? (1) Light (2) Energy (3) Water (4) Biomass
Last Answer : Energy
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 : Which one of the following is an abiotic and renewable resource? (1) iron ore (2) livestock (3) water (4) forests
Last Answer : water
Description : The transfer of minerals from top soil to subsoil through soil-water is called? (1) Percolation (2) Conduction (3) Leaching (4) Transpiration
Last Answer : Leaching
Description : The soil water which is of the greatest importance to the plant life is (1) Gravitational water (2) Capillary water (3) Hygroscopic water (4) Combined water
Last Answer : Capillary water
Description : A stretch of sea water, partly or fully separated by a narrow strip from the main sea is called (1) Bay (2) Isthmus (3) Lagoon (4) Strait
Last Answer : Lagoon
Description : A semi enclosed coastal body of water which has a free connection with the open sea is called (1) Estuary (2) Fjord (3) Cove (4) Ria coast
Last Answer : Estuary
Description : The largest reservoir of fresh water is : (1) Glaciers (2) Ground Water (3) Ponds (4) Lakes
Last Answer : Glaciers
Description : How much of world’s surface is covered by water? (1) 55% (2) 70% (3) 80% (4) 25%
Last Answer : 70%
Description : Best way to conserve our water resources : (1) Rain water harvesting (2) Sustainable water utilization (3) Encouragement of natural regeneration of vegetation (4) All of the options mentioned here.
Last Answer : All of the options mentioned here
Description : The rhythmic rise and fall of ocean water twice in a day is called (1) Tide (2) Ocean current (3) Wave (4) Water cycle
Last Answer : Tide
Description : The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as : (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth
Last Answer : Eutrophication
Description : The coastal part of water bodies of the oceans which is structurally part of the mainland of the continents is called (1) isthumus (2) oceanic ridge (3) continental shelf (4) continental slope
Last Answer : continental shelf
Description : The term territorial water means (1) The water found within the country in form of rivers and lakes (2) The water secured from other countries (3) The water which is supplied to other countries (4) Water of the sea located close to the coast of a country
Last Answer : Water of the sea located close to the coast of a country
Description : The coastal part of water bodies of the oceans which is structurally part of the mainland of the continents is called the (1) Isthmus (2) Oceanic ridge (3) Continental shelf (4) Continental slope
Last Answer : Continental shelf
Description : Two seas or water-bodies connected by a narrow stretch of water is known as a (1) Bay (2) Strait (3) Peninsula (4) Isthmus
Last Answer : Strait
Description : The narrow stretch of water connecting two Seas is called (1) Bay (2) Peninsula (3) Isthamus (4) Strait
Description : A place where there is constant intermingling of salt water and fresh water is ____ (1) Estuary (2) Delta (3) Gulf (4) Bay
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 : Which of the following is FALSE with respect to rain water harvesting ? (1) It is a device of water conservation. (2) It helps raising water table. (3) It helps meet rising water demand. (4) It increases run-off losses.
Last Answer : It increases run-off losses.
Description : The main advantage of Rain? Water Harvesting (RWH) is (1) Recharge ground water (2) Avoid floods (3) Reduce the loss of water (4) Avoid soil erosion
Last Answer : Recharge ground water
Description : Frontal Rain is caused by (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains
Last Answer : Cyclonic activity
Description : Recharging of water table depends on (1) amount of rainfall (2) relief of the area (3) vegetation of the area (4) amount of percolation
Last Answer : relief of the area
Description : Uneven distribution of insolation on the earth is mainly due to the (1) spherical shape of the earth (2) distribution of land and water (3) direction of the winds (4) presence of pressure belts
Last Answer : spherical shape of the earth