1. Observing and experimenting are both a. parts of the scientific method.
b. ways of investigating the world.
c. examples of hypotheses.
d. Both a and b
What’s the answer

Hurry ! between 1900 and 2010, how did the world’s population change? a. it increased from about 1.5 billion to almost 7 billion. b. it decreased from about 7 billion to about 1 billion. c. it increased from about 5 billion to about 7 billion. d. it decreased from about 7 billion to about 1.5 billion.

What is the contribution of women in making the family and in the nation?

What are the most populous and least areas of russia and why are some areas more heavily populated than others