P Flag question
The half-life of zinc-71 is 2.4 minutes. If a fresh sample containing 75 grams is left to decay
to products, how much radioactive zinc will be left in 11 minutes?
Select one
64 grams
1600 grams
5.8 grams
3.6 grams

i'm hoping this is like a multiple answer question. if it is then it would be, the location of the plants and also the height of the plants since one she wants to know where in her garden the chamomile grows best. but also to see which plants grew better in the location she also has to measure the plant itself. (if you can only choose one answer than it would be c).

it's c. elements are placed in rows based on how may valencies electrons have.

answer; talc and gypsum;