Explanation:
<h2>In the given options, marble , limestone, and baking soda are all either metal carbonates or bicarbonates All these when react with a dilute acid then they produce carbon dioxide. Whereas lime which is calcium oxide when react with a dilute acid then they do not produce carbon dioxide.</h2>
Lignin
It is a complex organic polymer that form an important structural materials in the support system of vascular plants and can also be found in some algae. This is an important molecule in the structural composition of cell wall, such as in wood and bark. This also allow woods and barks to have strong, rigid which allows them to no break easily. Lignin can also be found inserted in the cell wall of this plants.
The answer is Primary producers.
This is a sample of a food chain:
Quaternary Consumer > Tertiary Consumer > Secondary Consumer > Primary Consumer > Primary Producer (base)
Hope this helps.
To track the sun as it moves through out the day.