Penny writes a word equation to describe photosynthesis. Which of the following is correct? A Carbon dioxide and water combine and produce sugar and oxygen.
Nitrogen and carbon dioxide combine and produce oxygen and sugar.
Oxygen and sugar combine and produce nitrogen and carbon dioxide.
Sugar and oxygen combine and produce carbon dioxide and water.

Carbon dioxide + water -> glucose and oxygen

So, the answer would he 'A carbon dioxide and water combine and produce sugar and oxygen'.

Hope this helps! :)

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. ... DNA and histone proteins are packaged into structures called chromosomes