Question
Concentrations of the atmospheric 
have been rising becaue of
- Use of fossil fuels
- Acid rain
- Photochemical smog
- Ozone depletion
The correct answer is: Ozone depletion
Related Questions to study
Two disc of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1:3. The moment of inertia of these disc about the respective axes passing through their center and perpendicular to their planes will be in the ratio
Two disc of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1:3. The moment of inertia of these disc about the respective axes passing through their center and perpendicular to their planes will be in the ratio
of 
(alum) can be replaced by
of (alum) can be replaced by
If the sides of triangles are 8,15,17 then radius of the Circumcenter is
In this question, we have to find the radius of the circumcenter. The given sides of triangle is triad of the Pythagoras theorem then the triangle is right angled.
If the sides of triangles are 8,15,17 then radius of the Circumcenter is
In this question, we have to find the radius of the circumcenter. The given sides of triangle is triad of the Pythagoras theorem then the triangle is right angled.
A thin wire of length L and uniform linear mass density 
is bent in to a circular loop with center at O as shown in figure. The moment of inertia of the loop about the axis xx’ is ....
A thin wire of length L and uniform linear mass density is bent in to a circular loop with center at O as shown in figure. The moment of inertia of the loop about the axis xx’ is ....
If heart of a mammal was injected with 2% 
solution, then
If heart of a mammal was injected with 2% solution, then
If α2, b2, c2 are A.P then cot A, cot B, cot C are in
If α2, b2, c2 are A.P then cot A, cot B, cot C are in
The first heart sound is
The first heart sound is
The compound (C) is:
The compound (C) is:
The pressure-volume of varius thermodynamic processes is shown in graphs:
Work is the mole of transference of energy. It has been observed that reversible work done by the system is the maximum obtainable work
The works of isothermal and adiabatic processes are different from each other
If 
and 
are work done in isothermal, adiabatic, isobaric, and isochoric reversible processes, respectively then the correct sequence (for expansion) would be
The pressure-volume of varius thermodynamic processes is shown in graphs:
Work is the mole of transference of energy. It has been observed that reversible work done by the system is the maximum obtainable work
The works of isothermal and adiabatic processes are different from each other
If and are work done in isothermal, adiabatic, isobaric, and isochoric reversible processes, respectively then the correct sequence (for expansion) would be
The nerve like modified muscle in the right auricle is known as
The nerve like modified muscle in the right auricle is known as
Process 
represents
Process represents
A: Excess amount of CO, in air is responsible for greenhouse effect.
R: CO2 is largely produced in respiratory functions.
A: Excess amount of CO, in air is responsible for greenhouse effect.
R: CO2 is largely produced in respiratory functions.
If a,b,c are in A.P the 
are in
If θ is one of the acute angles in a triangle, then the sine of theta is the ratio of the opposite side to the hypotenuse, the cosine is the ratio of the adjacent side to the hypotenuse, and the tangent is the ratio of the opposite side to the adjacent side.
If a,b,c are in A.P the are in
If θ is one of the acute angles in a triangle, then the sine of theta is the ratio of the opposite side to the hypotenuse, the cosine is the ratio of the adjacent side to the hypotenuse, and the tangent is the ratio of the opposite side to the adjacent side.
Systemic heart refers to
Systemic heart refers to
Which is a analgesic drug
Which is a analgesic drug
