Question

When the sun, the earth and the moon come to lie in the straight line it causes-
A. Earthquakes
B. Eclipse
C. Eruption of volcano
D. None of these

Answer 1

Hint: To solve this problem we should know about what is the reason behind the sun, the earth and the moon interlinked with each other. Our planet revolves around the sun due to its gravitational force. So, we can conclude when gravitational force is more between two objects then they revolve around it, not always around the sun. For example, the Moon revolves around the earth because it is closer to the earth than the sun.They have a fixed orbit around which they revolve around.

Complete answer:
A. Earthquakes are caused due to the interior of the earth surface and it gives rise to a new landform on the earth's surface only.
B. An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial bodies is known as syzygy. There are three type of eclipse occurring;
-Solar eclipse
-Lunar eclipse

Solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the moon which fully or partially blocks sunlight. This is caused when the sun, moon and earth are aligned. There are four types of solar eclipse that are found. Partial solar eclipse, annular solar eclipse, total solar eclipse and hybrid solar eclipse. The alignment of these three occurs on the lunar month or new moon.

Lunar eclipse, a total lunar eclipse takes place when the earth comes between the sun and the moon and its shadow covers the moon. Eclipse watchers can see the moon turn red when the eclipse reaches totally. Earth’s shadow can divide into three parts- umbra, penumbra, and antumbra. During a total lunar eclipse earth’s umbra completely covered the moon.

C. Eruption of volcanoes: They occur mostly on the plate boundaries in the earth crust. And it gives rise to change in landform on the earth's surface only.
D. Eclipse is the correct option so we can eliminate this option.

Hence, the correct answer is option B.

Note: We need to take protection from the eclipse. There are some instructions which we need to follow- do not look directly at the sun. Do not use homemade filters or ordinary sunglasses, even very dark sunglasses. Use special purpose solar eclipse glasses or hand-held solar viewers to view the eclipse.