Answer:
????
Explanation:
None of those seem to be correct to me.
1. Observations are made using the five senses- sight, sound, touch, taste, and smell. So this is invalid.
2. Observations and experiments can both be done anywhere
3. See answer to 2
4. It's cut off? But observations can literally be as simple as looking at a stick and noting that it's brown, so from what I can read, it's invalid.
The stomach breaks down food , so it has the most acidic substance
Answer:
Children younger than 5, but especially children younger than 2 years old. Adults 65 years of age and older. Pregnant women (and women up to two weeks postpartum)
Explanation:
They all go through a rotation in which one needs another
