supported by science. 4: Briefly describe the environmental spheres: atmosphere‚ hydrosphere‚ cryosphere‚ biosphere‚ and lithosphere. A: The atmosphere is described as the gaseous envelope of air that surrounds the earth. It is a complex mixture of gases needed to sustain all life. Most of it is very close to the earth’s surface‚ where it is densest at the seal level and thins as altitude increases. The hydrosphere comprises water in all forms. The oceans contain a good majority of the water found
Premium Latitude Equator Earth
71% of the earth’s surface 3. The oceans account for about 97% of Earth’s water 4. Geosphere: beneath the atmosphere‚ solid earth. Atmosphere: provides the air that we breathe and protects us from the dangerous radiation emitted by the Sun. Hydrosphere: dynamic mass that is continually on the move‚ evaporating from the oceans to the atmosphere‚ precipitating to the land‚ and running back to the ocean. Biosphere: includes all life on earth. 1.5 2. The Earth system is powered by the Sun and the
Premium Atmosphere Oxygen Sun
A most recent inquiry into climatic change during the ice age and it ’s possibility of reoccurring is the Snowball Earth Hypothesis advanced by Paul Hoffman of Harvard University. Snowball Earth Suggest that before the Ice age‚ continents ice free at the poles enhanced the reabsorption of carbon dioxide through erosion of silicate minerals‚ reducing the greenhouse effect making the earth colder until it reached a runaway point. This effect is Hoffman calls albedo‚ when the atmosphere becomes so cold
Premium Earth Snowball Earth Water
each other but are also interactive and interdependent. Life exists only where these three components interact. The Earth’s system consists of four major subsystems. They are known as domains‚ spheres or realms. They are the Lithosphere (land)‚ Hydrosphere (water)‚ Atmosphere (air) and Biosphere (the parts of the Earth where life is found‚ including land‚ water and the lower part of the atmosphere). LITHOSPHERE: the realm of land & MAJOR LANDFORMS The Lithosphere is the solid surface layer of the
Premium Earth Water Ocean
CHAPTER 1 Introduction to Environmental Pollution 1.1 INTRODUCTION Amongst the developing countries‚ India is the foremost nation to take note of degradation of environment. In 1972‚ in the world environmental conference held at Stockholm‚ our government declared that it is their responsibility to control pollution in India. Even during recent global conference held at Kyoto in Japan‚ India accepted the responsibility of reducing global warming and depletion of ozone layer by banning the use
Premium Pollution Air pollution Environmentalism
Study Guide GEOL 1500 test #1 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What are the basic differences between the disciplines of physical and historical geology?|1)| A) physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past B) physical geology involves the study of rock strata‚ fossils‚ and deposition in relation
Premium Earth Mineral Geology
Air Pollution is one of the most worrying problems of our time. This problem surfaced during the industrial revolution. The great industrial revolution brought about many positive changes to the world; better transportation‚ cheaper products‚ and a better life. However‚ with it’s riches came the price‚ pollution. At the beginning of the industrial revolution‚ no one paid any attention to the problem of pollution. As the science‚ progressed people started to realize this problem. Air pollution
Premium Oxygen Air pollution Acid rain
INTRODUCING WITH BIOCHEMICAL CYCLES Biochemical cycles Nutrients are important for organisms to function. Each nutrient has a role in global biogeochemical cycles. A nutrient is a chemical that organisms need to live and grow and are substances an organism’s uses for metabolism which must be taken in from its environment that enrich the organism. Two types of nutrients are macronutrients and micronutrients. Macronutrients are needed in large quantities while micronutrients are needed in smaller
Premium Water Oxygen Water cycle
the thinking faculty or brain box with wisdom to discern the body chemistry without man environment will be useless. The earth’s external surroundings is divided into four parts: The biosphere which contain materials that supports human life The hydrosphere which contains water bodies which occupy 71 percent of the earth’s surface The atmosphere is the gaseous part. It helps to control climate change by trappin radiation from the sun. The lithosphere is the solid part of the earth e.g. rocks The sun
Premium Earth Sun Solar System
24hrs darkness ~Equinox- poles have = amt daylight‚ direct rays strike at equator (march 21 and sept 22) ~Atmosphere-envelope of gases surrounding Earth’s surface ~Lithosphere- solid crust‚ rock‚ soil‚ continents‚ islands and ocean floor ~Hydrosphere- ALL of Earth’s water ~Biosphere- all life forms All four major spheres are interconnected. ~Environment-surroundings- biological‚ chemical and physical conditions that interact with and affect
Premium Earth Latitude Equator