A student studies the gathering of frogs at the end of a pond, and has made the following notes in her lab book. Which of these is a CONCLUSION?

A)
The frogs are all of the same appearance.

B)
The frogs are attracted to the warmth of the sun.

C)
The shadier end of the pond has fewer frogs than the sunny end does.

D)
There are five times as many frogs at one end of the pond as at the other.

Explanation:

Choices A, C, and D are all observations. Choice A tells the student the color/look of the frogs.  Choice C tells the student that the darker end of the pond has less frogs than the lighter end and choice D supports choice C with numerals.

Choice B on the other hand, is a different observation.  The difference is that with the others, you can notice the observations right off the back, but for the student to know that the frogs are drawn to the sun, the student must experiment or wait to record this.  This end recording is also called a conclusion.

I hope this helped !

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.