Description : The ozone in the atmosphere helps to block out excess of what type of rays?
Last Answer : ANSWER: ULTRAVIOLET LIGHT
Description : Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine
Last Answer : ANSWER: Y -- CHLORINE
Description : What is the name of the atmosphere layer of upwardly diminishing temperature situated above the stratosphere and topped by the mesopause?
Last Answer : ANSWER: MESOSPHERE
Description : In terms of the mass of material ejected into the atmosphere, what is the name of the largest volcanic eruption of this century, and where was it located?
Last Answer : ANSWER: MOUNT PINATUBO, PHILIPPINES
Description : Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River
Last Answer : ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA
Description : Cloud droplets unite most easily to form raindrops in clouds containing which of the following substances? w) ozone x) plant pollen y) carbon tetrachloride z) large salt crystals
Last Answer : ANSWER: Z -- LARGE SALT CRYSTALS
Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) ozone and methane x) nitrous oxide and sulfur dioxide y) methane and carbon dioxide z) ozone and carbon monoxide
Last Answer : ANSWER: Y -- METHANE AND CARBON DIOXIDE
Description : To what does the atmosphere's "greenhouse effect" refer to? w) the fact that ozone reflects ultraviolet radiation x) the fact that air prevents heat from leaving the earth y) the fact that clouds prevent sunlight from reaching the earth z) the fact that green plants use sunlight to produce food
Last Answer : ANSWER: X -- THE FACT THAT AIR PREVENTS HEAT FROM LEAVING THE EARTH
Description : Certain substances are classified as water pollutants, others as air pollutants and still others as land pollutants. Which of the following pollutes all three parts of our environment? w) fluorocarbons x) smog y) acid rain z) ozone
Last Answer : ANSWER: Y -- ACID RAIN
Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide
Last Answer : ANSWER: Z -- METHANE AND CARBON DIOXIDE
Description : Pick out the wrong statement. (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere (B) ... ) The earth's atmosphere is an envelope of gases extending upto a height of about 200 kms
Last Answer : (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere
Description : The gaseous water density of the atmosphere is more commonly known as what?
Last Answer : ANSWER: HUMIDITY
Description : What name is given to the science which studies the atmosphere? w) oceanography x) atmospherology y) meteorology z) weatherology
Last Answer : ANSWER: Y -- METEOROLOGY
Description : What is the name given to the term that defines the proportion of the incident solar radiation which is diffusely reflected from the atmosphere and surface of the planet back into outer space?
Last Answer : ANSWER: ALBEDO
Description : The oxygen in the earth's atmosphere was probably produced by which of the following? w) volcanos x) photosynthetic organisms y) radioactive minerals z) meteors
Last Answer : ANSWER: X -- PHOTOSYNTHETIC ORGANISMS
Description : The jet-stream lies between which two layers of th earth's atmosphere? w) thermosphere and ionosphere x) mesosphere and thermosphere y) troposphere and stratosphere z) stratosphere and mesosphere
Last Answer : ANSWER: Y -- TROPOSPHERE AND STRATOSPHERE
Description : What is the name of the phenomenon that causes an accumulation of heat in the lower atmosphere because of the absorption of longwave radiation from the Earth's surface?
Last Answer : ANSWER: GREENHOUSE EFFECT
Description : The concentration of carbon dioxide in the atmosphere is in the range of: w) 1-10 parts per million x) 10-100 parts per million y) 100-1000 parts per million z) 1000-10,000 parts per million
Last Answer : ANSWER: Y -- 100-1000 PARTS PER MILLION (the exact number is 350 ppm as of the time of this article)
Description : While many different gases are found in the atmosphere, a number do NOT contribute significantly to solar heating of the atmosphere. Which TWO of the following gases do NOT absorb much heat? w) carbon dioxide x) nitrogen y) water vapor z) oxygen
Last Answer : ANSWER: X and Z -- NITROGEN and OXYGEN
Description : What gas makes up the majority of our atmosphere?
Last Answer : ANSWER: NITROGEN
Description : What percentage of the earth's atmosphere does O2 comprise? w) 75% x) 50% y) 21% z) 32%
Last Answer : ANSWER: Y -- 21%
Description : An area that is not in a major earthquake belt is the region of the w) Andes mountains x) Coast Ranges of Central America y) Appalachian Mountains z) the islands of Japan
Last Answer : ANSWER: Y -- APPALACHIAN MOUNTAINS
Description : Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible
Last Answer : ANSWER: W -- ULTRAVIOLET
Description : The degree of aridness of a geographic region is generally defined as the ratio of precipitation to: w) condensation x) evaporation y) transpiration z) snowpack depth
Last Answer : ANSWER: X -- EVAPORATION
Description : What is the name given to a region where one plate of the earth's crust is sliding under another?
Last Answer : ANSWER: SUBDUCTION ZONE
Description : Iceland has a great deal of volcanic activity. The reason for this is: w) it was formed above a mid-ocean rift. x) it is part of the "Ring of Fire". y) two tectonic plates are rubbing against each other under Iceland. z) the American plate is diving under the European plate in this region.
Last Answer : ANSWER: W -- IT WAS FORMED ABOVE A MID-OCEAN RIFT.
Description : In an ocean, the upper layer of water with sufficient light penetration to support photosynthesis by aquatic plants i known as the: w) free zone x) plant zone y) photic zone z) primary zone
Last Answer : ANSWER: Y -- PHOTIC ZONE
Description : The aquifer of a famous artesian formation in the Great Plains is a layer of rock called the: w) Clinton limestone x) Dakota sandstone y) Pierre shale z) Vermont marble
Last Answer : ANSWER: X -- DAKOTA SANDSTONE
Description : Which of the following is the name of the partly melted rock layer on which the plates move? w) lithosphere x) asthenosphere y) hydrosphere z) outer core
Last Answer : ANSWER: X -- ASTHENOSPHERE
Description : Name the mountain range, located in South America, which runs through Peru.
Last Answer : ANSWER: ANDES
Description : Name the very old mountain belt located in southern Missouri and Northern Arkansas.
Last Answer : ANSWER: OZARKS
Description : Mount St. Helens is one of the more active volcanos in the United States today. In what state is Mount St. Helens located?
Last Answer : ANSWER: WASHINGTON
Description : On which one of the following is the largest known volcanic cone in the solar system located? w) Earth x) Io y) Mars z) the moon
Last Answer : ANSWER: Y -- MARS
Description : All of the following are TRUE of the Paricutin volcano except w) its slopes are steep x) it is a lava cone y) it is located in Mexico z) it was built over a short period of time
Last Answer : ANSWER: X -- IT IS A LAVA CONE
Description : Lassen Peak is an active volcano in the United States In what state is Lassen Peak located?
Last Answer : ANSWER: CALIFORNIA
Description : The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as: (A) Ozone hole (B) Atmospheric window (C) Ozone window (D) Black hole
Last Answer : Answer: Option B
Description : What is the name of the layer of the Earth's atmosphere that contains the ozone layer?
Last Answer : A: The stratosphere.
Description : How does CFC gas damage the ozone layer in the atmosphere ?
Last Answer : When CFC gas is present in the stratosphere of the atmosphere, the sun's ultraviolet rays break it down and release chlorine. This free chlorine acts as a catalyst and breaks down ozone into oxygen.
Description : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult
Last Answer : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of ... true but reason is wrong D. Both are wrong
Description : Ozone layer of upper atmosphere is being destroyed by:
Last Answer : Ozone layer of upper atmosphere is being destroyed by: A. Chlorofluorocarbon B. `SO_(2)` C. photochemical oxidants/`O_(2)` and `CO_(2)` D. smog.
Description : The zone of atmosphere in which the ozone layer is
Last Answer : The zone of atmosphere in which the ozone layer is A. lonosphere B. Mesosphere C. Stratosphere D. Troposphere
Description : Mirage is due to (a) Unequal heating of different parts of the atmosphere (b) Magnetic disturbances in the atmosphere (c) Depletion of ozone layer in the atmosphere (d) Equal heating of different parts of the atmosphere
Last Answer : Ans:(a)
Description : Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays
Last Answer : (1) oxygen and ultraviolet rays Explanation: Ozone in the Earth's stratosphere is created by ultraviolet light striking ordinary oxygen molecules containing two oxygen atoms (O2), splitting them into ... (atomic oxygen). The atomic oxygen then combines with unbroken O2 to create ozone (O3).
Description : Which layer of the earth's atmosphere contains the ozone layer? (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere
Last Answer : (4) Stratosphere Explanation: The ozone layer is a region of Earth's stratosphere. It is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometres (12 to 19 mi) ... nm to 315 nm wavelength), which other-wise would be harmful to exposed life forms on the earth.
Description : Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful (1) solar ultraviolet radiation (2) solar infrared radiation (3) CO2 in the air (4) SO2 in the air
Last Answer : (1) solar ultraviolet radiation Explanation: Ozone layer serves as a protective shield against harmful solar ultraviolet radiation.
Description : Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? (1) Chlorofluorocarbons (2) Nitrous oxide (3) Sulphur dioxide (4) Carbon dioxide
Last Answer : (1) Chlorofluorocarbons Explanation: Chlorofluorocarbon contributes to ozone depletion in the upper atmosphere. It is an organic compound that contains only carbon, chlorine, and fluorine, produced as a ... methane, ethane, propane. Its manufacture has been phased out under the Montreal Protocol.
Description : Ozone layer in the outer atmosphere helps us in – (1) reflecting radio waves and makes radio communication possible (2) regulating he temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations
Last Answer : (4) absorbing U-V radiations Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (03) which absorbs 97- 99% of the Sun's medium-frequency ultraviolet light.
Description : Ultra violet light of Sun's radiation is prevented from reaching the earth's atmosphere by the layer of – (1) Oxygen (2) Hydrogen (3) Ozone (4) Helium
Last Answer : (3) Ozone Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (03). The layer absorbs 97-99% of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which potentially damages exposed life forms on Earth.
Description : The ozone layer in the atmosphere is at a height of about ______. (1) 25 km (2) 50 km (3) 100 km (4) 200 km
Last Answer : (2) 50 km Explanation: Ozone is mainly found in two regions of the Earth's atmosphere. Most ozone (about 90%) resides in a layer that begins between 10 to 17 kilometers above the Earth's surface and extends up to about 50 kilometers
Description : In the absence of ozone layer, Which rays will enter into atmosphere? (1) Infrared (2) Visible (3) Ultraviolet (4) X-rays
Last Answer : (3) Ultraviolet Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (O3). The ozone layer absorbs 97-99% of the Sun's medium-frequency ... (from about 200 nm to 315 nm wavelength), which potentially damages exposed life forms on Earth.