solids and gases
noble gases
left of the periodic table are the gases. as u go down the gases keep on becoming heavier
Methane or ethylene would be examples of an organic gases.
Acidic oxides causes acid rain. SO2, NO2 are gases for examples.
The variable gases are are those atmospheric gases whose concentrations vary through time. The variable gases are sometimes called the "minor gases" because they make up such a small percentage of the atmosphere by volume.. Carbon dioxide, methane, and water vapor are examples of variable gases.
The difference between permanent and variable gases is that variable gases change in response to activities in the environment, and permanent gases stay constant.
Some examples of a scientific variable is Independent Variable Control Variables :)
Water vapor
water vapor
Solids have a definite volume and gases have a variable volume
Coal oil, and natural gases are examples of fossil fuels
visithttp:/www.statisticssolutions.com/moderator-variable. it gives good definition of moderator variable
speed
O2 is Oxygen.
utilities
solids and gases