The highlands are the oldest lunar features.
I think b, because it’s the time that the isotope takes to fall to half of its original value
A conflict involving wanting to eat an ice cream sundae andd wanting to lose weight is known as an intrapersonal conflict. An intrapersonal conflict occurs within an individual and occurs in the persons mind. It involves an individual's thoughts, values, principles, beliefs and emotions. If not resolve, this conflict can lead to depression.
Answer:
A sexual reproduction it is mostly send in single sel organisms
Answer:
The biosphere is the region of the earth that encompasses all living organisms
