Who was the first scientist to dispute ptolemy's model of a geocentric orbit earth science universe?

X Simplify the following expression. 3x + 4 (x + 2) - 3

Which renewable energy source is used frequently in the U. S and Canada?

Was it a good idea for people to set up civilizations near the Nile, Ganges, Huang He, and Chang Jiang Rivers? Why or why not?

I'm looking at the mineral feldspar. if it does, how does light travel through feldspars crystal structure? can someone explain feldspar crystal optics to me?

Inside the Roche Limit is where large moons form. ring systems cannot exist. hydrogen can only exist in its liquid metallic form. large moons are torn apart. there is a gap in a planet's magnetic field.

Are the days longer or shorter in the Northern Hemisphere right after the autumnal equinox?

Saudi Arabia is the largest country of the Arabian Peninsula. Question 3 options: True False

Choose a landmark that was built in the last 250 years, such as Mount Rushmore, the Eiffel Tower, or the Statue of Liberty.

Which cities are port cities in the United States

Select the correct answer. Which situation is a result of cultural diffusion? O A. a child in Korea ordering a pizza at a local restaurant O B. an elderly New York couple visiting England Oc. a US worker paying a tip at a diner O D.