Atmosphere Evolution on Rocky Planets Atmosphere can be defined as a gaseous compound layer surrounding a large body mass suspended by means of gravity and centrifugal force caused by rotation [1]. Atmospheres of planets have not always been the same‚ its evolution comprised of complex development across million years of geologic time affected by various changes of variables inside and outside its planet [2]. Of the interest of this essay is the atmospheric evolution of a rocky planet. Rocky planet
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Cycle Recently‚ scientists have studied both short- and long-term measurements of atmospheric CO2 levels. Their data revealed that human activities are significantly altering the natural carbon cycle. Since the beginning of the industrial revolution‚ human activities such as the burning of fossil fuels and deforestation have accelerated‚ and both have contributed to a long-term rise in atmospheric CO2. Burning oil and coal releases carbon into the atmosphere far more rapidly than it is being removed
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Chapter 5 The Working Cell Energy • Capacity to do work • Types of energy – – – – Kinetic energy – energy of motion Potential energy – stored energy Thermal energy - heat Chemical energy - potential energy of molecules • Thermodynamics – Study of energy Oxidation-Reduction Reactions • When an atom or molecule loses an electron‚ it is said to be oxidized – process called oxidation • When an atom or molecule gains an electron‚ it is said to be reduced – process called reduction
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made. • This smaller table shows that plant cells also have extra parts. Part Function(s) Cell Wall Made of cellulose. Supports and strengthens the cell. Chloroplasts Contain chlorophyll‚ which absorbs light energy for photosynthesis. Permanent Vacuole Filled with cell sap (to help keep the cell turgid). • • • • Smallest living organisms are single cells – these can carry out all functions of life‚ from feeding and respiration to excretion and reproduction
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OUTLINE General Purpose: To persuade Specific purpose: After listening to my speech‚ my audience will know how they can change their lives for a bigger challenge – to save the world. Thesis: Knowing what a problem nowadays is global warming‚ how CO2 gas affects it and how can we change it. Title: Lifestyle to make some changes INTRODUCTION I. Attention Material: Question “Do you know that using cars
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sunlight and increase the earth’s overall temperature. The gases responsible for the global warming are known as Greenhouse Gases (GHGs)‚ which are comprised of Carbon Dioxide CO2‚ Chlorofluorocarbons CFCs‚ Methane CH4‚ Nitrous Oxide N2O and water vapors. These gases are produced by a number of anthropogenic activities. CO2 is mainly produced during the combustion of wastes‚ carbon‚ wood and fossil fuels. Chlorofluorocarbons are used for refrigeration‚ aerosol propellant and for insulation and it
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DNA- is the material found in the nucleus that contains the genetic info. 4 billion codes in length Gene- a segment of DNA that controls a certain protein production. A gene is made up of hundreds to thousands of codes. Chromosomes- genetic material that is coiled up into structures during cell division. Importance of DNA- genes control the production of proteins..(look like‚ body function‚ body communications‚ and enzyme control) DNA screening- the process of testing individuals to determine
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AP bio final study Study online at quizlet.com/_6ovb5 1. 2 carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate falling statoliths trigger gravitropism 2 9. acrosomal reaction 2. a botanist discovers a plant that lacks the ability to form starch grains in root cells‚ yet the roots still grow downward. This evidence refutes the long standing hypothesis that A human red blood cell in an artery of the left arm is on its way to deliver
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The carbon and energy obtained by plants is not only dependent on photosynthesis‚ but also cellular respiration (Reddy et al. 1970). Cellular respiration‚ an array of metabolic processes‚ in plants is the oxidation of the chemical energy from acquired nutrients into energy in the form of ATP or adenosine triphosphate. In a germinating pea‚ which respires‚ the mitochondria provides cellular ATP‚ this is possible because it is utilizing stored nutrients (Stupnikova et al. 2006) In order to determine
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Carbon Footprint briefly defined is the amount of CO2 left behind after any human activity. They can be classified into primary and secondary footprints. [ (McLean 2008) ] Primarily‚ it is the direct emission of CO2 from burning fossil fuels or any kind of fuels. They are considered the main and biggest source of CO2 emission‚ thus the having biggest Carbon Footprints. [ (McLean 2008) ] The CO2 emissions from all products and their life-cycles are considered as secondary footprints. The life-cycle
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