IGNEOUS ROCKS IGNEOUS ROCKS are formed as a result of the cooling and solidification of molten magma either on the surface or in the earth crust. When the temperature of the earth is very hot, it melts the rock into thick liquid called molten magma, and when it cools, it becomes solid which forms igneous …
Rock is the consolidated part of the earth crust, which weathers to release the mineral particles from which soil is formed. The mineral particles form the skeletal framework of the soil. Rocks can also be said to be hard compact mass, which is made up of clusters of either primary or secondary minerals. Primary minerals …
The earth is the planet we live on, but only 29% of the earth’s surface is and, the other 71% is ocean. It is shaped like a large ball; about 12700km in diameter and an atmosphere surrounds it. Note that the atmosphere is divided into: Troposphere (bottom), Stratosphere (middle), Lonosphere and Exosphere. The earth consists …
This is an imaginary line, which runs North-South approximately 180° meridian in the Pacific Ocean. Whenever the International Date Line is crossed; a whole day is either lost or gained. Traveler’s closing the International Date Line in a West-Ward direction lose a day while those crossing eastward gain a day.
This is the time along the prime or Greenwich meridian, which is longitude 0°. Other countries calculate their time from the GMT. The GMT is also called World Time.
This is the time generally adopted by a particular country, which is usually taken from the central meridian of that country. Standard time is adopted to avert possible confusion in time. Nigeria for instance adopts her standard time on longitude 1 5°E, which is one hour ahead of the Greenwich Mean Time (GMT). What this …