I believe it that the answer is C. Hope this helps
The Cretaceous–Paleogene (K–Pg) extinction event (also known as the Cretaceous–Tertiary (K–T) extinction) was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
The answer to this question is B
CH3- methyl group
COOH- carboxyl group
H2O- just water
NH2- amino goup
OH- hydroxyl group
the answer is H2O
Answer:
cellulose present in cell wall of dead sclerenchyma is the wood that we use in furniture in home
