1. Scientists measured the spot size of guppies (small fish) in two different populations. Which population has more guppies with large spots?
a
They both have the same number of guppies with large spots.
b
The population in Brazil has more guppies with large spots.
С
The population in Venezuela has more guppies with large spots.
d
These bar graphs do not show which population has more guppies with large spots.

Of course: ) what’s your name ?

Yeah, but what are you trying to ask?

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.