Help plz In a short essay, describe your environment. (Please be specific to you, and be sure to include biotic and abiotic factors
Try to be descriptive and list several examples of living and non-living parts of the environment as you can. Be sure to include information on the number of people, types of structures, weather, climate, and local flora and fauna. Also try to write in a way that helps someone who has never met you understand where you live. (Imagine you are writing for a student from another country like Australia who is also studying environmental science.)

i think it is true in my reasonment ..

the answer to your question is tooth decay.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.