earth day

Moon is the natural satellite of the earth. It is our nearest neighbor in space, but it is still about 380,000 kilometers away. Its surface is covered with lots of craters. There is no air and no water on the moon. Days are extremely hot and nights are very cold. As the moon is ..

If several satellites are spaced around the same orbit in space, the tracks of the satellites will be different due to Earth's rotation about its own axis. But if, for example, four satellites are placed into different orbits with their ascending modes displaced successively by 30 interv..

Celestial bodies revolving around a planet are called satellites. Moon is a natural satellite of the planet Earth. These days, the term satellite is used for manmade satellites, which revolve around the Earth. The closed path of a satellite around the Earth i..

One year is the time which the earth takes for one revolution around the sun which is, equal to 365 days..

Question: What appalling reality did Ch-tsal wake up to on the nineteenth day, Earth time? Answer: On the nineteenth day of his captivity, Ch-tsal saw that his jewelled feathers from his back and sides had fallen out in the night. These were his communica..

There has been considerable development in our day to day life due to study and application of Conductors, Insulators, and Capacitors. Thunderstorms and lighting that flash, help us to maintain the potential difference between the earth and atmosphere. Electrostatic sh..

Study of fossils is called palaenotolgy. Fossils are defined as preserved remains of a living organism that existed on earth a long time ago. Fossils are formed by the preservation of the remains of the organisms that existed in the earlier days..

Air is an inexhaustible natural resource, essential for the survival of all the living organisms on earth. Air is a mixture of different gases; nitrogen and oxygen are the major components. Air present in atmosphere consists of 78% nitrogen 21% oxygen and remaining 1% is made up of other ..

Mercury is the smallest planet in the solar system and it is nearest to the sun. It is a bare, rocky planet not much larger than our moon. There is no water or air on mercury. By day it is hotter than the hottest desert. At night, it is freezing cold. The ground is covered with craters fo..

Introduction - The first photosynthetic organism probably appeared almost three billion years ago. With the evolution of photosynthesis, however, organisms began to change the face of our planet and, as a consequence, to exert strong influences on each other. Organisms have continued to change the ..