Was the Mediterranean Sea ever dry?

Water bodies have always made an impact on the life of human beings, and therefore, you see that most of the top cities lie around famous oceans, seas, lakes and rivers that provide these places with water, which is important for daily life activities and existence. If you normally connect water bodies with beauty and […]

Was Antarctica ever warm?

If you ever want to visit an icy desert than you should read more about Antarctica, which is the fifth largest continent on our planet, but still we cannot live there because of the extreme cold conditions out there. It has been surveyed that Antarctica has the coldest and driest conditions, and therefore, it is […]

How do fossils get inside the rocks?

Fossils are the conserved remains or traces of the ancient animals, plants or other organisms. The sedimentary rock is a type of rock that is found commonly. The sedimentary rocks have several layers. Within these layers, one can find different fossils. Fossils take several thousands years to make. Over the years, the bones of the […]

How are valleys formed?

Valleys are depressions in the earth’s crust resulting from platonic movement of other natural factors. Depending on the formation and the shape of the depression, valleys are classified into different categories. Geological structures like ravines, canyons, gullies, kloofs and canyons may also be referred as a valley. Let us discuss about them one by one. […]

How to reduce your carbon footprint?

Living a more environmental friendly lifestyle will reduce the carbon dioxide levels generated by you. There are a number of ways to live a green life. While some of them may not be feasible, you can go for a host of others and contribute positively to the environment. Moreover, a green living may cost you […]

What causes tornadoes?

Tornadoes are very frequent in United States. They occur mostly during the spring and summer seasons. Nearly 800 tornadoes occur in different parts of U.S per year. Tornadoes also occur in many other parts of the world, but they are most frequent in U.S. Tornado is a violently rotating air that extends from the thunderstorm […]

What causes an ocean trench?

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 […]

How deep is the Pacific Ocean?

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 […]

How much water is on earth?

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 […]

Why is glacial ice blue?

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 move […]

Why are polar ice caps melting?

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 […]

How old is earth?

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 […]

How was the earth formed?

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 […]

How do volcano erupt?

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 […]

How do earthquake form?

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 […]

Why does earth rotate?

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 […]

Why earth has seasons?

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 […]

Why is earth round?

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 […]