Consider the following statements: Statement-I: Giant stars live much longer than dwarf stars. Statement-II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions. Which one of the following is correct in respect of the above statements?

Consider the following statement: 1. The albedo of an object determines its visual brightness when viewed with reflected light. 2. The albedo of Mercury is much greater than the albedo of the Earth.…

Which one of the following statements is correct with reference to our solar system?

Consider the following statements about some planets in the solar system: 1. Mercury has no atmosphere. 2. Venus has two moons. 3. There is no land on Jupiter. 4. Rings of Saturn are composed of lump…

Which one of the following is the correct sequence of arrangement of the given planets in descending order of their density (in gm/cm³) ?

Consider the following statements regarding asteroids : 1. Asteroids are rocky debris of varying sizes orbiting the sun 2. Most of the asteroids are small but some have diameter as large and 1000 km…