Question 1 Mutiple Choice Worth 3 points) (02,04 HC)
The peppered moth population in a locality has light and dark moth vaneties. The tree barks in the locality are covered with light-colored lichens. How would the
population of the two moth vaneties change over time?
© Dark moth population increases as they are preyed upon less frequenty
O Light moth poputation increases as they are preyed upon less frequenty
O Dark moth population decreases as they blend in with their surroundings
O Light moth population decreases as they blend in win their surroundings

D.

Explanation:Took the test!

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

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)