The ocean trenches are narrow topographic depressions in the sea. These trenches form the deepest points in the ocean and are the lowest points on earth.
These trenches are formed at a particular place of plate boundary which is known as subduction zone. It happens to form when a plate in ocean hits another ocean plate [...]
Pacific Ocean is the largest of all the water bodies on the earth. It has got its name from a Latin word “Mare Pacificum†which means “peaceful sea†given by Ferdinand Magellan a Portuguese explorer.
Pacific Ocean is 12999 meters deep. The deepest point in the Pacific Ocean is in the Mariana Trench. It is in [...]
Water is the most important substance on the earth required by all the living organisms whether human beings, plants or animals. We cannot imagine life on earth without water.
72% of the earth surface is occupied by the water bodies. It approximately 336,000,000,000,000,000,000 gallons which are equal to 326 million trillion gallons of water according to [...]
Glacial ice appears blue to us because all the colors of the visible spectrum (red, orange, yellow, green, blue, indigo, violet) except blue is absorbed by the ice. This blue color wavelength is transmitted which is responsible to make our eyes see the blue color of glacial ice. For this, the light has to [...]
This is the time of interglacial period through which we are going. During this period ice melts form the polar caps and the rate of melting has extended from its average time. The ice over the arctic region is melting which comprises of 3% of the total ice present on the earth and other is [...]
From different researches and evidences the age of earth is approximately 4.55 billion years. Some of the sedimentary rocks found in North America, Africa, Asia, Greenland and Australia are nearly 3.8 billion years old and gave minerals that are of nearly 4.2 billion years. But we cannot calculate the age of earth on these things [...]
It is believed that the earth was formed nearly 4.6 billion years ago from nebula, a cloud of dust particles and gas. Sun stars and all other planets are formed in a same way. So millions of years ago a hot glowing ball was formed having millions of degree Fahrenheit temperature. Because of this all [...]
Volcanoes are formed when there is a great stress inside the earth’s crust and the pressure of magma reaches so high that it finds its way upward causing an eruption. Sometimes the magma chamber breaks its sides and only reaches to the flank or summit of volcano and sometimes reaches to the surface causing an [...]
There are four layers of earth the solid inner core, the liquid outer core, the mantle, the crust. A sudden rapture in the fault can cause an earthquake. A fault is a gap or we can say fracture in the earth’s crust and it can be of any depth or length which varies from place [...]
It is believed that the earth is made up of cloud of gas and dust particles called nebula that collapses under its own gravity and started spinning. When this cloud and dust particle condensed they remained in rotation and the rotation is speeded up when condenses at the center. So it is said that earth [...]
The main reason behind the seasons on earth is it’s tilt on its axis. Axis is an imaginary line passing through the poles. 23.5 degree angle is formed to the perpendicular of the orbit of earth and axis always points in the same direction throughout the year.
Rays coming from sun hits at smaller angle as [...]
It is believed that earth is formed four and a half billion years ago from a huge mass of gas. A force pulls everything with the same power from the centre which is called gravitational force and this force is almost equal at every place on the earth. If this force was not equal everywhere [...]