The diagram below shows how heat can be transferred in the atmosphere as hot air rises and cool air sinks. When the hot, wet air rises, a large, anvil-shaped cloud can form and produce heavy rain. Image courtesy of Robert Simmon, NASA

The type of heat transfer that causes the air to circulate and form such clouds is called .
A.
conduction
B.
radiation
C.
evaporation
D.
convection

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.