Jamal needs to know how fast a red oak sapling grows. what can he do to find this out?
a. grow a sapling from seed and measure its growth periodically.
b. measure how fast the saplings of different kinds of oaks grow.
c. cut down an adult red oak and count its rings.

Th correct answer is "Grow a sapling from seed and measure its growth periodically."

Explanation:

To find the answer to a question about nature, it is best to plan an experiment in which the natural event in question can be directly observed and measured.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.