The correct answer to your question would be (4) - planting large expanses of one crop reduces the biodiversity of the area.
This should be evident - once you're planting only one crop in a certain area this necessarily decreases the biodiversity of that area. What is even more problematic with palm oil, however, is that it's often associate with the reduction of the natural habitat of different animals such as orangutans for example.
The end product of the protein breakdown by the said enzyme, protease, are amino acids. Protease is an enzyme that is responsible for the digestion of different types of proteins. They breakdown proteins by hydrolysis. They are also called proteolytic enzymes.
The pericardial cavity separates the parietal and visceral pericardium