Question

read the following original passage, sarahs explanation of photosynthesis, and answer the questions.
on a warm afternoon, sarah explained to her classmates how photosynthesis works, aiming to help them understand the complex process. she began by introducing the topic: photosynthesis is how plants convert sunlight into energy. next, she organized the process into clear steps, explaining that first, plants absorb sunlight through their leaves. then, they take in water and carbon dioxide, which are necessary ingredients for energy production. sarah provided specific examples, such as how trees release oxygen during this process, making it essential for life on earth. by the end of her explanation, her classmates could easily follow the steps and appreciated the role of photosynthesis in the environment.

1. what did sarah say is required, along with sunlight, for photosynthesis?

a. water and carbon dioxide
b. chlorophyll and nitrogen
c. minerals and sunlight
d. nitrogen and oxygen

1. what should be identified first?

a. paragraphs
b. purpose
c. length
d. publication date

1. supporting evidence should be

a. extensively philosophical
b. comprehensively theoretical
c. emotionally charged

Explanation:

For question 16, the passage clearly states "they take in water and carbon dioxide, which are necessary ingredients for energy production" along with sunlight. For question 17, when understanding a process like photosynthesis explanation, the purpose (aiming to help understand) is the first key element. For question 18, in an educational explanation like this, supporting evidence should be comprehensive and theoretical (explaining steps, ingredients etc. in a structured way).

Answer:

1. A. Water and carbon dioxide
2. B. Purpose
3. B. Comprehensively theoretical