Answer:
The theory for the origin and evolution of the universe is the Big Bang model, which states that the universe began as an incredibly hot, dense point roughly 13.7 billion years ago.
Finding neutrons = Mass number - proton number.
For finding neutrons for phosphorus = 31-15
=16.
Mountain Gorilla’s are more vulnerable to extinction because they are endangered due to habitat loss, diseases, poaching, ect.
Answer: Microscope
Explanation: This is a kid answering :)
