All life as far as we know is liqiud water based so.........
passive solar-heating system, and active solar-heating system are two types of heating system.. =D By: Wilfred Castro.
Maybe 3 types
There is only one star in our Solar System See related question.
Rotation and revolution.
rock and gas
rock and gas
Gas giants and rocky.
Stars or asteriods
The two types of external organizational environments are the internal and the external organization environments.
There are two types of planets in the solar system. These are, the smaller, rocky planets, which are Mercury, Venus, Earth, and Mars, and the gas giants, which are Jupiter, Saturn, Uranus, and Neptune.
uranus and mars
The two types of solar heating systems are active solar heating systems, which use pumps and fans to circulate air or fluid, and passive solar heating systems, which rely on building design and materials to capture and store heat from the sun.