How is a poem's rhyme scheme marked and identified? upper or lowercase letters, such as “ABAB”
Roman numerals, such as “I, II, I, II”
Arabic numerals, such as “1212”
punctuation symbols, such as “!?!?”

trigonal pyramidal

tetrahedral

trigonal planar

bent

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

the correct answer would be b) volume versus temperature, because they are also directly proportional.