Which of these is an example of a scientific law

Are salt and soap nutrients or toxins for yeast? explain.

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer