Sandstone is a type of sedimentary rock composed mainly of sand-sized mineral particles or rock fragments. Formation of sedimentary rocks takes place by the layer by layer deposition of rock particles brought by the rivers, on the river bed.
The Earth has multiple layers depending upon the depth like core, mantle and crust. The innermost part is known as the Core, then the second layer which mainly consists of molten minerals is called the Mantle and the outermost layer on which we live is known as the Crust.
Q6. The scientific name of human being is _________.
The Mariana Trench or Marianas Trench is the deepest part of the world’s oceans. It is located in the western Pacific ocean an average of 200 kilometres to the east of theMariana islands in the Western Pacific East of Philippines
Q8. Masai is a tribe of which of the following country?
The “Maasai” are an ethnic group inhabiting southern Kenya. They are among the best known local populations due to their residence near the many game parks of the African great lakes and their distinctive customs and dress
Q9. With which of the following body organ is ‘pace-maker’ associated?
निम्नलिखित में से कौन से अंग से “पेस मेकर” सम्बंधित है?
The Amazon River, in south america is the largest river by discharge volume of water in the world and according to some authors, the longest in length in the world. The Amazon enters Brazil with only one-fifth of the flow it finally discharges into the atlantic ocean and yet already has a greater flow at this point than the discharge of any other river.
Sahayadri Ranges, also known as the western ghats is a mountain range that runs parallel to the western coast of the indian peninsula, located entirely in India. It is a UNESCO World Heritage Sight and is one of the eight “hottest hot-spots” of biological diversity in the world.
Antonie Ven Leeuwenhoek is commonly known as “the father of microbiology”, and often considered to be the first acknowledged microscopist and microbiologist. He was the first to document microscopic observations of muscle fibers, bacteria, spermatozoa, and blood flow in capillaries.