Chemical changes in the structure shown are most likely to happen during a) exposure to water. b) exposure to high humidity. c) exposure to mutagenic agents. d) exposure to high oxygen levels.

the answer is c

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)

this is a good question! i'll do some research and come back when i have the answer!