Answer:
D) Phosphorous catches fire in air.
Answer:
c
Explanation:
smog is smog because of the air pollution
Answer:
Land dispute and borders
Explanation:
India-Pakistan wars are the series of conflicts that took place between India and Pakistan and termed as India-Pakistan War. The most violent outbreaks came in 1947-48, 1965, 1971 and 1999. Reasons of conflicts are border dispute, Kashmir problem, Water dispute and terror controversy.
We need to assume that the orbits are circular; this is a very good approximation and do not hesitate to adopt it. We need then to consider the basic equation of circular motion that relates centripetal acceleration, angular velocity, mass, radius and force:

. We also have the basic equation of Newton, F=ma. By checking, we see that for each planet we have that a=v^2*r where v is the angular velocity. v=

where T is the orbital period, hence we have that a=

. Denote with the index 1 the Earth case and with 2 the Mars case. We have then that

. Substituting the known values in a calculator, we get the result: the centripetal acceleration of earth is 2.32 times greater than that of Mars.
Answer:
meridian° east of greenwich