Answer:
The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.
:-))
Answer: physical
Explanation: freezing and melting are physical changes.
Atomic mass is the answer!!
Explanation: An elements atomic number won’t be able to change
Answer:
Is this math? Cause as a fourth grader, I can do Algebra, but not this.
Explanation:
The answer is they follow a patter for valence electrons.
