What can natural selection accomplish? prove darwin's idea of "survival of the fittest" change relative number of inhabitants within a community favor a particular variety (color or size) of a species change one kind of organism into another in order to surviv

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

clouds form

solid ice forms on leaves.

water droplets form on grass.