The hottest planet of solar system is
(a)Mars
(b)Mercury
(c)venus
(d)pluto

(b)

The hottest planet of solar system is one which is nearest to sun and has no atmosphere

(c) VenusMercury is closest to the sun, this is true. However, because of its proximity to the sun it lacks an atmosphere. Mercury`s gaseous molecules reached escape velocity long ago and the atmosphere was `burned off` leaving a vacant wasteland of rock with a similar surface to the earth`s moon. There is nothing to hold in solar radiation, thus is flies out into space. Venus Venus is a different story. Its atmosphere is primarily composed of carbon dioxide - the primary green house gas -, which acts like a one-way door. The solar heat enters, but it cannot leave. Thus, an oven is created. This is why Venus is the hottest planet of our solar system

C )venus