3 - The sentences below summarize some topics of the text. Which ones are they? a. A green school uses almost 1/3 less water than other schools. b. In a green school building, students can learn Math and Science in practice. c. A green school can invest more money in equipment, books and teacher's payment than other schools. d. Building a green school supports sustainable development, by using green products and creating green jobs.

Syllable added to a root word to change its meaning : affixan independent word--example run,walk,book : free morphemeaffix that gives grammatical meaning such as tense or number : inflectiona word part that must attach to a word in order to be usable : bound morphemedegree of comparison formed by adding -er or more to an adjective : comparativedegree of comparison formed by adding -est or most to an adjective : superlativeaffix added to the beginning of a word : prefixaffix added to the end of a word : suffixroot word of lovable : lovetwo roots used together to form one word : combining form