Related Questions

A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it.
A Hydrogen
B Carbon dioxide
C Ozone
D None of these
Which of the following depletion results in the increase in the UV radiation on the Earth?
A Carbon monoxide
B Carbon dioxide
C Ozone
D Oxygen
Under the depletion allowance method in computing depreciation, the depletion charge is equal to either ______ whichever is smaller.
A Fixed percentage of gross income or the net taxable income
B Fixed percentage of gross income or 50% of the net taxable income
C 50% of the fixed percentage of gross income or 50% of the net taxable income
D 50% of the fixed percentage of gross income or the net taxable income
The depletion allowance method of computing depletion is commonly known as ______.
A Unit method
B Percentage method
C Factor method
D Sinking fund method
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
A helium
B ozone
C oxygen
D methane
Ultraviolet radiation which is not lethal but harm to the organism is
A 0.1 to 0.28
B 0.28-0.32
C 0.32-0.4
D 0.4-0.5
Scientists have speculated that the destruction of Earth's ozone layer would--------- us to damaging ultraviolet rays.
A exposed
B have been exposed
C expose
D have been exposing
the wzone in the upper layers of Earth's atmosphere is beneficial, ____ animal and plant life from dangerous ultraviolet readittion
A protecting
B withdrawing
C thwarting
D displacing
The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. This is known as ________
A Earth radiation
B Wave balance of earth
C Heat balance of earth
D Radiation exchange
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N

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