Answer:
only helium makes balloons go up so the answer is helium
Explanation:
Answer:
True
Explanation:
honey bees can detect bombs they can be trained to detect them.
<span>Foods that are highly acidic tend to inhibit bacteria growth. Many times, bacteria do not acclimate well to acidic environments, so having a food with a very low pH will help to make sure that the bacteria can't thrive in such an environment. Fruits and vegetables are good examples of these types of food.</span>
