Initially, the main source of power in the 1800s was a. steam. b. electricity. c. gasoline. d. water.

How do i do this? true or false? : elephants have the same dna as humans and bananas alike.

What is the difference between an independent and a dependent variable?

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.