Simple, we are learning about new things every day we as a human race learn something new about our world
Answer:
d
Explanation:
many of them become certified
<span> It is a hydraulic </span>system<span> used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The </span>system<span> is composed of canals connecting numerous tube feet.</span>
If I'm not mistakened, the answer is D
Hope this helps :)
Answer:
Choice C. Sodium bicarbonate acted as a pH buffer in Solution 2.
Explanation:
Sodium carbonate is used as pH buffering agent. Buffering agent is a type of solution which contains weak base or acid which stabilize the solution when another strong acid or base is added to the solution. If acid is added, the weak base that is present in the solution reacts with it and when base is added, weak acid reacts with it.
