It depends on whatever it's real or just a simple theory. But, at times it may not be simple as it seems, because theories are often left as theories. In the near future (or even now) they'll be testing to see if theories can be proven as a fact!
Good luck!
Answer:
Direct and indirect sunlight is the main cause for the 4 different seasons
Explanation:
B. Jimmy never helps his elderly neighbors with physical rigorous tasks.
Answer:
Genetic variation in species
Explanation: