Scientists noticed that the frogs in smith lake were much larger than the frogs in lake martin. smith
lake is non-polluted, fresh water, whereas the water quality in lake martin is low due to contamination
with pesticides. in the experiment, tadpoles of the same age were collected, along with the same amount
of water from each reservoir. the tadpoles were allowed to mature for 3 weeks and their growth was
compared

answer: i would say b.

explanation:

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

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

i dont know

explanation: