Answer:
Acid
Explanation:
Because water is neutral and has a pH level of 7, and anything below 7 on a pH scale is acidic, solute X is an acid because it lowered the pH level.
Answer:
The biosphere is the region of the earth that encompasses all living organisms
Answer: Option D) Pupil
Explanation:
Pupil is the hole in the middle of the iris of the eye, through which light passes to be focused on the retina. Thus, the pupil is analogous to the hole in the centre of a doughnut
Answer:
No
Explanation:
Evolution is a process by which a species accumulates and adopts genetic changes in order to permanently change their genetic codes. Gaining a tan is the process of your skin cells being fried by UV light. Therefore, tanning is not an evolutionary act.
An invasive species<span> is a plant, fungus, or animal </span>species<span> that is not native to a specific location (an introduced </span>species<span>), and which has a tendency to spread to a degree believed to cause damage to the environment, human economy or human health.</span>
