Latitudinal differences in surface warming give rise to global patterns of air circulation and rainfall. At the equator and the latitudes of 60 degrees . At the poles and the latitudes of 30 degrees . A. cold, dry air sinks; warm, moist air rises and loses moisture as rain
B. warm, moist air rises and loses moisture as rain; cold, dry air sinks

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

What is the difference between an igneous, sedimentary and metamorphic rock

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?