Biology Essay Example | Topics and Well Written Essays - 500 words - 4

Biology - Essay Example A large meteorite could weigh several tons and hit the ground at a speed of some 40,000 kilometers per hour. The impact of this could be much higher and worse than the power of 1000 Hiroshima bombs. A crater could be formed where it falls and the material in the crater can get heated and become slung in the atmosphere. The impact could be so heavy that this could in turn fall with a great force several miles away and explode as if a volcanic eruption has taken place. The shock waves can flatten trees and buildings if it falls on land and it could result in tsunami or floods if it falls on the sea. The dust created due to this impact could block the sun light for several years and this would lead to mass destruction. Plants could die due to lack of sunlight and animals due to lack of food. The diversity of life would be adversely affected with this impact. Agriculture would be badly hit as all major food crops, including corn, wheat, and soybeans, depend on the introduction of new strains. Medicines are made from substances derived from plants, animals, or microorganisms for instance penicillin for antibiotics comes from the pencillium fungi. The planet earth has a wealth of natural resources and the economy itself is dependent on these resources. Sunlight is vitally important because its absence could have a direct affect on food, clothing, and medicines. Trees and plants return oxygen to the air through photosynthesis; bacteria break down organic material, building, and fertilizing the soil. Thousands of natural products are used by the industry to give us everyday goods. The seaweed is used in plastics, polishes, paints, deodorants, detergents, dyes, fire-extinguishing foams, lubricants, meat preservatives, and chicken feed, to name a few. Certain species support the entire ecosystem. If these species were to disappear under the impact of the meteor, it could affect human life, the heredity, and its