Why does one part of Earth experience summer while another part experiences winter?
A. The combination of Earth's tilted axis and the Coriolis effect
causes the atmosphere to be unequally heated by the sun.
B. The combination of greenhouse gases and ozone causes the
atmosphere to be unequally heated by the sun.
C. The combination of Earth's tilted axis and its revolution causes the
atmosphere to be unequally heated by the sun.
D. The combination of Earth's rotation and its revolution causes the
atmosphere to be unequally heated by the sun.

24. how are vaccines used to keep people healthy?

Dna replication occurs in preparation for

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.