The feather fell slower because it encountered more air resistance.
This hydrocarbon because it possess at least 1 double bond it would be an Alkene. Alkenes possess at least 1 carbon carbon double bond. It is an example of an unsaturated hydrocarbon.
Both use the scientific method to an extent and are a way of scientific exploration.
Cratering, Erosion, Volcanoes and Weathering
Metabolism means <span> biochemical processes that occur within a living organism
and consist of anabolism which means build up </span>substance and catabolism which means breakdown substance
