Answer:
you don't earn money while volunteering
volunteering aboard can be expensive
many volunteers have too high expectations
Explanation:
I searched it up and took time to read
B) the less porous, the less permeable
Porous means "full of holes."
Permeable means "stuff can go through it."
The more porous something is, the more permeable it is.
Answer:
I'm thinking the answer would be C if not then it would be B
Explanation:
In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
the only flying mammal is a Bat