Description : Consider the following statements: 1. The atmosphere of the primitive earth was reducing 2. The primary source of energy for the chemosynthetic reactions on earth that led to the origin of life was the solar energy 3. Liquid water did not ... 1 and 2 (b) 1 and 4 (c) 1, 2, and 3 (d) 1, 3, and 4
Last Answer : Ans:(d)
Description : If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because (a) mineral movement will be blocked (b) the rate of decomposition will be very high (c) energy flow will be blocked (d) herbivores will not receive solar energy.
Last Answer : (a) mineral movement will be blocked
Description : How is the Relative humidity of the atmosphere directly affected? -General Knowledge
Last Answer : Relative humidity of the atmosphere is directly affected by change in atmospheric pressure. Relative humidity is directly related to the amount of water vapor in air, and that's the relationship. The more is the water vapour in the air, the higher the relative humidity is at a given tempera- ture.
Description : How is the Relative humidity of the atmosphere directly affected?
Last Answer : Change in atmospheric temperature
Description : Durability of building stone is affected by its (A) Chemical composition (B) Texture (C) Resistance to atmosphere (D) All the above
Last Answer : Answer: Option D
Description : High-frequencywaves are a. absorbed by the F2 layer b. reflected by the D layer c. capable of use for long-distance communications on the moon d. affected by the solar cycle
Last Answer : d. affected by the solar cycle
Description : What is a Natural phenomenon where particles from solar activity interact with atoms in earths atmosphere to create bands of light?
Last Answer : color
Description : The increasing amount of CO2 in the atmosphere is slowly raising its temperature because it absorbs (a) the infrared part of the solar radiation (b) the ultraviolet part of the solar radiation (c) all the solar radiations (d) the water vapour of the air
Last Answer : Ans:(a)
Description : In which of the following layer of atmosphere the absorption and scattering of the solar ultraviolet radiation takes place? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere
Last Answer : (2) Stratosphere Explanation: Solar ultraviolet radiation undergoes absorption and scattering as it passes through the stratospheric layer of the earth's atmosphere. The ozone layer, a region of Earth's ... result, no UV radiation at wavelengths shorter than 290 nm reaches the surface of 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 : Higher concentration of CO2 in atmosphere (A) Allows visible solar radiation (ultraviolet) of short wave-length to pass through (B) Reflects and absorbs the longer wavelength (infra-red) radiations (C) Prevents solar heat being ... in 'heat trap' i.e., global warming (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by ... in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Last Answer : (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Description : Pick out the wrong statement pertaining to 'green house' for the plants. (A) 'Green house' (made of glass) allows visible sunlight (i.e., short wavelength solar radiation like ultra-violet rays) ... ' thereby warming up the earth's surface (D) 'Green house' is colder than the outside atmosphere
Last Answer : (D) 'Green house' is colder than the outside atmosphere
Description : Which of the following factors contribute to formation of photochemical smog? 1. Stable atmosphere 2. NOx 3. Solar insolation 4. CO (a) 1, 2, 3, & 4 (b) 2, 3 & 4 only (c) 1 & 4 only (d) 1, 2 and 3 only
Last Answer : (a) 1, 2, 3, & 4
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 : 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
Last Answer : solar ultraviolet radiation
Last Answer : Stratosphere
Description : How is energy transferred within the earth and atmosphere and throughout the oceans?
Last Answer : By convection
Description : Range of Television Broadcasting is confined to a limited distance because (a) Long waves are used (b) Short waves are absorbed by atmosphere (c) Energy of the waves is dissipated (d) Earth is spherical in shape
Description : The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it? A. 10% B. 20% C. 30% (Answer) D. 50%
Last Answer : C. 30% (Answer)
Description : What region of the earth near the equator receives the most solar energy'?
Last Answer : The Atacama desert
Description : What happens to solar energy that reaches Earth?
Last Answer : In India we have 300 sunny days - but we ignore this renewableenergy to produce electricity.
Description : What region of the earth near the equator recives the most solar energy?
Last Answer : What is the answer ?
Description : Solar energy is received by the earth through – (1) conduction (2) radiation (3) convection (4) refraction
Last Answer : (2) radiation Explanation: In physics, radiation is a process in which energetic particles or energetic, waves travel through vacuum, or through mattercontaining media that are not required for ... Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere.
Description : The solar radiation coming to Earth is called – (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation
Last Answer : (2) Insolation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects ... the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
Description : 'Green House Effect' means - (1) cultivation of crops in green house to conserve heat (2) trapping of solar energy due to carbon dioxide gases (3) trapping of solar energy by earth upper surface (4) increase of heat due to atmospheric pollution
Last Answer : (2) trapping of solar energy due to carbon dioxide gases Explanation: Green House Effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases and is re-radiated in all directions.
Description : Solar energy is distributed __________ overthe earth. a. Unequally. b. Equitably. c. Same. d. Evenly.
Last Answer : b. Equitably.
Description : The Greenhouse Effect is caused primarily by which of the following processes? w) blocking incoming short wave solar energy x) absorbing incoming short wave solar energy y) heating of the Earth's stratosphere z) absorbing outgoing long wave radiation from the Earth
Last Answer : ANSWER: Z -- ABSORBING OUTGOING LONG WAVE RADIATION FROM THE EARTH
Description : ‘Green House Effect’ means (1) cultivation of crops in green house to conserve heat (2) trapping of solar energy due to carbon dioxide gases (3) trapping of solar energy by earth upper surface (4) increase of heat due to atmospheric pollution
Last Answer : trapping of solar energy due to carbon dioxide gases
Description : The solar radiation coming to Earth is called (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation
Last Answer : Insolation
Description : Solar energy is received by the earth through (1) conduction (2) radiation (3) convection (4) refraction
Last Answer : radiation
Description : What is affected directly if you travel from earth to the moon?
Last Answer : Need answer
Description : How has the movement of the earth plates affected the evolutin of living things?