The human heart has 4 chambers. Namely
Right and left Ventricle
Right and left Artrium
A sudden change in the weather is caused by an air mass.
Answer:
Theory
Explanation:
A scientific theory is what best fits your description. A scientific theory basically explains aspects of the natural world. However, scientific theories are not just ideas, it is based on collaborative works that tests the idea through the scientific method. Theories are verified through repeated testing.
Scientific hypotheses can eventually become a scientific theory when results have been verified through repeated testing.
Answer: I think its b not sure though
Explanation:
have a great day :)