Question
The atmosphere is held to the earth by

Answer

(b) various atom of gases present in the earth atmosphere has masses and a gravitational force acts between theses atoms and earth. 

also this is the force which holds the various gases near the surface and atmosphere is present.

so best possible answer is option $B.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In a diffraction pattern due to a single slit of width $a$, the first minimum is observed at an angle $30^o $ when light of wavelength $5000 \;\mathring A$ is incident on the slit. The first secondary maximum is observed at an angle of
A body of mass $1\,kg$ crosses a point $O$ with a velocity $60\,ms^{-1}.$ A force of $10\,N$ directed towards $O$ begins to act on it. It will again cross $O$ in ........ $\sec$
In the following diagram the work done in moving a point charge from point $P$ to point $A$, $B$ and $C$ is respectively as $W_A$, $W_B$ and $W_C$ , then
The diode used at a constant potential drop of $0.5\, V$ at all currents and maximum power rating of $100\, mW$. What resistance must be connected in series diode, so that current in circuit is maximum ? (in $\Omega$)
A car moving with a speed of $40\, km/h$ can be stopped by applying brakes after atleast $2\, m$. If the same car is moving with a speed of $80 \,km/h$, what is the minimum stopping distance............$m$
A light inextensible string that goes over a smooth fixed pulley as shown in the figure connects two blocks of masses $0.36 \mathrm{~kg}$ and $0.72 \mathrm{~kg}$. Taking $g=10 \mathrm{~m} / \mathrm{s}^2$, find the work done (in joules) by the string on the block of mass $0.36 \mathrm{~kg}$ during the first second after the system is released from rest.
In a coil, the current changes form $-2 \mathrm{~A}$ to $+2 \mathrm{~A}$ in $0.2 \mathrm{~s}$ and induces an emf of $0.1 \mathrm{~V}$. The selfinductance of the coil is :
Consider a uniform rod of mass $\mathrm{M}=4 \mathrm{m}$ and length $\ell$ pivoted about its centre. A mass $m$ moving with velocity $v$ making angle $\theta=\frac{\pi}{4}$ to the rod's long axis collides with one end of the rod and sticks to it. The angular speed of the rod-mass system just after the collision is
Formation of real image using a biconvex lens is shown below:

If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen?

A transformer with turns ratio $\frac{ N _{1}}{ N _{2}}=\frac{50}{1}$ is connected to a $120$ volt $AC$ supply. If primary and secondary circuit resistances are $1.5\, k \Omega$ and $1\, \Omega$ respectively then find out power out put (in $W$)