What is the difference between herb and grass?

English Grammar Tests, Elementary Level

ESL/EFL Test #167 [color=blue]“Zebras and Kangaroos: Vocabulary Practice”, question 5

Zebras eat such as grasses, shrubs, and herbs.

(a) insects
(b) cheese
(c) plants
(d) animals

English Grammar Tests, Elementary Level

ESL/EFL Test #167 [color=blue]“Zebras and Kangaroos: Vocabulary Practice”, answer 5

Zebras eat plants such as grasses, shrubs, and herbs.

Correct answer: (c) plants
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hi,
What is the difference between herb and grass?
Thanks in advance.

Herbs can be added into the preparation of many meals, to add flavour.
Grass is usually only eaten by animals.

Basil, oregano, thyme, rosemary, marjoram etc are some examples of herbs.