Earth is closest to the sun when it is summer in the
a. southern h
b. northern h
c. western h
d. eastern h

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

How do dying stars contribute to the formation of planets