Answer:
B: sample 4
Explanation:
This is because amino acids are basic units for proteins
Plants need energy from the sun, water from the soil, and carbon from the air. The plant uses the carbon to form the leaves and stem and roots. I can go more into detail in the comments if you need.
Answer:
How can I reduce my exposure to radiation from X-rays?
- Tell the X-ray technologist in advance if you are, or might be, pregnant.
- Ask if a protective shield can be used. ...
- Ask your dentist if he/she uses the faster (E or F) speed film for X-rays. ...
- Know your X-ray history.
The salt most likely will raise the boiling and freezing points of the solution slightly.