Nature and Science Info

Past Papers of SBBU Nawabshah Download Past Papers of Shadeed Benazir Bhutto University Nawabshah. If you are a student of Shaheed Benazir Bhutto University Nawab Shah and want to download complete free Past Papers BSc Part one, and BSc Part two. You are here at the right place. Here you can download completely free Past Papers of All Subjects of BSc Part 01 and BSc Part 02 as well. You can easily download Past Papers of all Compulsory, and Optional Subjects of SBBU university as well. so Either, you are a medical student and want to download Past Papers of Biology, Botany, and Zoology. or if you are an Engendering Student who wants to download Physics, Chemistry, or Mathematics you are here at the right place. Here you can download all Subjects Past Papers of BSc Part one and BSc Part two of Sheed Benazir Bhutto University Nawab Shah with just one click. We provide completely free past papers so you don’t need to pay anything. You can download past papers of Compulsory Subje

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Definition Types and Classification of Sedimentary Rocks. Sedimentary Rocks Characteristics. Sedimentary Rocks are formed by deposition and compaction of mineral grains derived from other rocks. sedimentary rocks are formed by the agency of Wind, Water, and Ice. Mostly Sedimentary rocks begin their existence as loose deposits of sand, or gravels, At the bottom of the sea or lake. Later on, those sediments are lithified into a rock called sedimentary rock. Sedimentary Rocks are classified into two major types. Organic Sedimentary Rock Inorganic Sedimentary Rock 01. Organic Sedimentary Rock The Organic Sedimentary Rocks are classified into four types:   Calcareous Rocks.  Carbonaceous rocks.  Siliceous Rock.   Ferruginous Rocks. Calcareous Rocks:  Calcareous Sedimentary rocks are formed by the remains of shell organisms, such as Corrals, and Shell fishes, etc.  Calcareous deposits are formed when water is evaporated, lea

To the Point Classification of Igneous Rocks   Igneous Rock Definition The Rocks which are formed due to the Cooling action, and solidification of molten magma, and lava called Igneous Rocks. Characteristics of Igneous Rocks Igneous rocks are considered the world’s oldest rocks and are also known as primary rocks. Igneous Rocks are crystalline because they are formed from the cooling of molten magma. Igneous Rocks are not made of Rounded Particles (Textures). Igneous Rocks are made of texture having various shapes and sizes. Igneous Rocks do not contain any fossil content. Igneous Rocks are compact; therefore, they are too hard to be eroded easily.therefore, Igneous Rocks contain a large variety of minerals in bulk quantity. Igneous Rocks are Non-porous, thus, water cannot percolate in them. Igneous Rocks are not formed in layers. Igneous Rocks show a lot of variations in their Chemical, Mineralogical composition and textural Characteristics.  ---------------

To the Point Greenhouse Effect and its Causes Do you know it? Naturally, greenhouse gases are required by the Earth to control its temperature.  However, when the percentage of greenhouse gases is increased, It causes a problem called the Greenhouse effect.  Definition The greenhouse effect is a process in which the average annual temperature of the terrestrial and water surface is increased than its normal limits. This is happening  due to the increase of certain Greenhouse Gases - Carbon dioxide, Methane, Water vapor, Nitrous-oxide, CFCs, etc - in the Atmosphere. Naturally, these gases form a layer around the Biosphere called the greenhouse. and it controls the Heatwaves to balance the temperature of the Earth's surface. What will happen, if we remove the Greenhouse? if we remove the Greenhouse, then the annual average temperature of the earth's surface would be about minus -20 Degree Centigrade.  -----------------------------