Step-by-step explanation:
the change in seasons is caused by the tilt in the Earth's axis. the two halves of the earth are called North and South hemisphere. mexico is in the northern hemisphere. because of the tilt, one hemisphere points towards the sun and one doesn't . it is summer in the hemisphere that points towards the sun.it is winter in the hemisphere that points away from the sun.
a.northern hemisphere on the top. southern hemisphere on the bottom
b.its summer in the northern hemisphere.
c. it is winter in the southern hemispheres