Q: A substance that displays different colors when in the presence of an acid or a base is called what? A:

OPTIONS:
- pH scale
- reactor
- litmus test
- an acid-base indicator

Answer: an acid-base indicator

Problem: OPTIONS:
- Inorganic chemistry
- Biochemistry
- Theoretical Chemistry
- electrochemistry
Q: Q: What is the name of a branch of the chemistry that deals with the interconversion of chemical energy and electrical energy? A:
Answer: electrochemistry

Problem:OPTIONS:
- thyroid
- testes
- adrenal
- pituitary

Q: The male and female reproductive system is regulated by follicle-stimulating hormone (fsh) and luteinizing hormone (lh) produced by what gland? A:
****
A: pituitary

Q: Tropomyosin is a type of what, that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin? A:
OPTIONS:
- enzyme
- bacteria
- amine
- protein
protein

Q: What kind of volcanic eruptions are less deadly? A:
OPTIONS:
- non-dormant
- serial eruptions
- explosive
- non-explosive

Answer: non-explosive

input with options: Q: What lipid, added to certain foods to keep them fresher longer, increases the risk of heart disease? A:
OPTIONS:
- Omega-3 fatty acids
- fatty acids
- cholesterol
- trans fat
output:
trans fat