Which of the following is an example of a quantitative observation? A. The surface of Mars is rocky
B. Sulfur smells similar to rotten eggs.
C Mercury is silver and shiny.
D. The plant is 20 centimeters tall.
PLEASE HELP , it’s a quiz question and it’s past due date

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

What is the correct order of cell division? include what happens in each phase