the origin of life on Earth. They designed an apparatus that mocked the atmosphere of early Earth‚ Miller gathered molecules which were believed to represent the major components that were believed to be in the atmosphere and placed them into a closed system. A mix of water (H2O)‚ methane (CH4)‚ ammonia (NH3)‚ and hydrogen (H2)‚ the materials which were believed to represent the major components of the early Earth ’s atmosphere‚ was used in the experiment in order to test what kind of environment
Premium Mammal Water vapor Hydrogen
resources and every single one of the living creatures that planet earth is home to. However‚ in the preceding decades much has happened to our environments. After years of burning unlimited amount of fossil fuels and releasing harmful gases into the atmosphere‚ we have reached a point where it has affected our ecosystem. As result of the changes in our ecosystem‚ we have placed extreme amount of stress on living organisms. Animal population decreasing is one aspect of life; we have witnessed certain animal
Premium Fossil fuel Oxygen Atmosphere
warmed 0.3 to 0.6 degrees Celsius since the late 1800s. Scientists believe that the cause is the greenhouse effect‚ the process of trapping heat in the Earth’s atmosphere because of the presence of large amounts of carbon dioxide‚ chlorofluorocarbons‚ methane‚ and nitrogen oxides. Less oxygen is being produced and cleaning the atmosphere allowing more of these gases to do its work on the environment. Automobiles exhausts are just one of the contributors to this problem. The burning of fossil fuels
Free Earth Global warming Atmosphere
over the past century but since the Industrial Revolution‚ the effect of additions of greenhouse gases to the atmosphere have been about ten times that of changes in the Sun’s output‚ meaning that the sun is causing slight climate change‚ but not a significant amount of change. The Earth has a natural greenhouse effect where certain gases (known as greenhouse gases) in the atmosphere allow the sunlight to enter but absorb the heat radiation. Because these gases absorb the heat‚ they keep the average
Free Earth Climate change Sun
Specimen Paper Centre Number Surname Other Names Examiner’s Initials Candidate Signature Question Mark Candidate Number For Examiner’s Use General Certificate of Secondary Education Foundation Tier 1 2 3 4 5 6 7 Science A Unit Chemistry C1 Chemistry 1F Chemistry Unit Chemistry C1 For this paper you must have: • a ruler • the Data Sheet (enclosed). You may use a calculator. F 8 9 TOTAL Time allowed ! 60 minutes Instructions ! ! ! ! Use black ink or black ball-point
Premium Calcium carbonate Calcium Carbon dioxide
C1 TOPIC 1 – THE EARTH’S SEA AND ATMOSPHERE THE EVOLUTION OF THE ATMOSPHERE. Phase 1 – Volcanoes gave out gases. 1) The Earth’s surface was originally molten‚ it was very hot. 2) Eventually the surface cooled down and a bit crust formed. Volcanoes kept erupting. 3) Volcanoes gave out gases: CO2‚ water vapour and small amounts of other gases. (water and oceans formed) 4) The early atmosphere: mostly CO2‚ with no oxygen. 5) The oceans formed when the water vapour condensed.
Premium Oxygen Water Carbon dioxide
Air pollution is caused by many things‚ earth is very good at cleaning the air on its own‚ though through the years air pollution has gotten to a very bad point where earth can no longer clean all of the pollution we produce which has now started to have very bad effects on our environment such as causing acid rain‚ smog and a lot of health problems. There are a variety of things that cause air pollution like for example cars‚ airplanes and other engine vehicles. All these engine vehicles release
Premium Pollution Carbon dioxide Oxygen
gases it will lead to global warming. It’s very much like not parking your car under a tree‚ the car gets excessively heated up‚ making it uncomfortable to sit in the vehicle. Greenhouse Effect Greenhouse effect is the process in which the atmosphere of the Earth trap some of the heat coming from the sun‚ making the Earth warm but due to burning fuels‚ cutting trees‚ the concentration of heat on Earth is increased to abnormal levels making greenhouse effect as one of the major causes of global
Premium Global warming Precipitation Earth
Global Warming Global warming occurs when the levels of greenhouse gasses rise and less infrared light‚ or heat‚ escapes the earth’s atmosphere. Thus‚ the temperature experienced on Earth begins to rise. Climate change is a part of the Earth’s history. There have been dramatic fluctuations in overall average temperature for the past 150‚000 years that suggest a direct association with carbon dioxide levels. In the past the temperature highs and lows have been in tandem with carbon dioxide level
Free Carbon dioxide Global warming Atmosphere
It happens when greenhouse gases (carbon dioxide‚ water vapor‚ nitrous oxide‚ and methane) trap heat and light from the sun in the earth’s atmosphere‚ which increases the temperature. This hurts many people‚ animals‚ and plants. The greenhouse effect is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere. This is like when heat is trapped in a car. On a very hot day‚ the car gets hotter when it is out in the parking lot. This is because the
Premium Greenhouse gas Pollution Global warming