I believe it is C) calcium-rich plates echinoderms and B) bones in mammals like vertebral
Answer:
Every nation has its own natural resourse that has abundant and theres other that lack so the countries will trade they abundant for the ones they dont have.
Explanation:
Answer:
The polarity of water molecules means that molecules of water will stick to each other. This is called hydrogen bonding. Polarity makes water a good solvent, gives it the ability to stick to itself (cohesion), stick to other substances (adhesion), and have surface tension (due to hydrogen bonding).
Explanation:
Cause earth orbits around the sun in a year and we have 24 hours in a day
A or C is the right answer.
