Distinguish between a solar eclipse and a lunar eclipse, and the reasons for each
What will be an ideal response?
Answer: Eclipses occur with alignment of the Sun, Moon, and Earth. Both the Earth and Moon cast shadows into space due to illumination by the Sun. When the shadow of the Moon is incident on the Earth, observers in the shadow region witness a solar eclipse. When the shadow of the Earth is incident on the Moon, Earth observers witness a lunar eclipse.
You might also like to view...
What is the difference in meaning between the terms weather and climate?
A) Weather refers to local conditions, and climate refers to global conditions. B) Weather refers to short-term variations in conditions, and climate refers to long-term variations in conditions. C) Weather refers to small storms, and climate refers to large storms. D) Weather refers to wind and rain, and climate refers to processes like convection. E) There is no difference between weather and climate.
Which of the following statements is true in the context of radioactive elements?
A) The abundances of the daughter isotopes of radioactive elements in a rock gradually decrease. B) The abundance of a radioactive element in a rock gradually decreases. C) Uranium-238 has the longest half-life among all the other radioactive substances. D) Potassium-40 has the longest half-life among all the other radioactive substances.
When the Moon appears on an observer's meridian at midnight, it is called a(n) ______________ moon
Fill in the blank(s) with correct word
Which of the following is not a general characteristic of the four jovian planets in our solar system?
A) They lack solid surfaces. B) They are composed mainly of hydrogen, helium, and hydrogen compounds. C) They are higher in average density than are the terrestrial planets. D) They are much more massive then any of the terrestrial planets.