Which type of wave forms at the boundary between air and water in the open ocean?

A. Surface

B. Longitudinal

C. Electromagnetic

D. Transverse

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

Fill in the blank with the correct sphere label. a: ⇒ geosphere b: ⇒ biosphere c: ⇒ hydrosphere