Which statement is correct about the pyramid of numbers?
a. higher the trophic level, lower the number of species and larger their size.
b.
higher the trophic level, higher the number of species and larger their size.
c.
higher the trophic level, lower the number of species and smaller their size.
d.
higher the trophic level, higher the number of species and smaller their size.

Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.

What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche? during an avalanche, the( 1 ) energy of the snow on the mountain is converted into ( 2 ) energy as the snow cascades down. ( 1 ) a. elastic b. kinetic c. potential d. radiant ( 2 ) a. chemical b. kinetic c. nuclear d. potential

How did geographic isolation affect the islands in the australasia ecozobne?