Choices:
[+] Dew;
[+] oceans;
[+] summer;
[+] rain;
[+] h2o;
[+] CO 2;
[+] H20;
[+] evaporation;

Fact 1: Streams may start with runoff or water seeping out of a spring. Fact 2: Water is made up of H2O molecules. Given the two facts above, streams start with runoff or what seeping out of a spring?
Answer:
h2o