How many of the stars visible in the night sky are closer to Earth than to the Sun? A. All of them
B. None of them
C. About half
D. Only one

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

Which of the following is an environmental cost of agriculture? a. agronomyb. cash cropsc. pollutiond. crop rotation

Hey people my question is what happens if the earth crust was never apart of the earth just got a new account very upset because my other account didn't work no more so and you for everything gracious < 3< 3< 3