Spring tides occur on new moon and full moon days because on these days_____________?
A. Sun, moon, and earth are in a straight line B. Sun and earth are at right angles C. Sun and moon are at right angles D. Earth and moon are at right angles
A. Sun, moon, and earth are in a straight line B. Sun and earth are at right angles C. Sun and moon are at right angles D. Earth and moon are at right angles
A. Spuntnik I B. Luna II C. Vostok I D. Apollo XI
A. Second B. Third C. Fourth D. Sixth
A. 84 years B. 76 years C. 1000 years D. 365 years
A. Smallest B. Brightest C. Most dense D. Largest
A. The fact that the sun really becomes oval in the evening B. Refraction of rays of sun passing through the atmosphere C. Optical Illusion D. Dispersion