1. As seen by an observer on Earth‚ a star that is moving away from the Earth would have ______ light energy waves. A. expanded B. compressed *E. both A and D are correct 2. The theory that tries to explain the origin of the universe revolves around the idea that __________. *B. the original black hole exploded and scattered clouds of uncharged particles moving at high velocities 3. What was the first element formed during the creation of the universe? *B. hydrogen 4. Our solar system
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healthy mother Earth People like to keep good health to live longer and happier. Similarly‚ we must keep our mother earth in good health not only for current generation‚ but also for the future generations. People spoil their health with unhealthy habits. Similarly‚ we spoil the earth with mindless abuse of her resources. When we let the earth to take toll because of our overindulgences resulting in air pollution‚ water pollution to name a few‚ the delicate ecosystem of mother earth can choke causing
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consumes and to absorb its wastes‚ using prevailing technology. [pic] [pic] Our current global situation: Since the mid 1980s‚ humanity has been in ecological overshoot with annual demand on resources exceeding what Earth can regenerate each year. It now takes the Earth one year and four months to regenerate what we use in a year. We maintain this overshoot by liquidating the Earth’s resources. Overshoot is a vastly underestimated threat to human well-being and the health of the planet‚ and
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rings around them. These are belts of small debris. These rings may be seen from the earth with the help of powerful telescopes. ‘Sol’ in Roman mythology is the ‘Sungod’. ‘Solar’ means ‘related to the sun’. The family of the sun is‚ therefore‚ called the solar system. My Very Educated Mother Just Served Us Nine Pakodas. MY VERY EFFICIENT MOTHER JUST SHOWED US NINE PLANETS Sun is about 150 km from earth. All the nine planets of the solar system move around the sun in fixed paths. These
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Amazon Rainforest needs to be protected! If we do nothing to save the rainforest‚ our planet will be permanently damaged and there will be nothing we could do about it. The rainforest is basically the lungs of the earth. The carbon that will be released into the atmosphere will heat up the earth‚and possibly kill many plants‚ animals‚ etc. People are also doing things in the amazon that are killing many species of plants‚ animals‚ etc. Also‚ do do what is threatening these animals‚ developers have to
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people-made machine that orbits a variety of other objects in space. Many Artificial Satellites orbit the Earth to gather information about the universe‚ to predict the weather‚ to help with the navigation of ships and planes‚ to assist in telephone calls over the ocean‚ to observe the Earth‚ and as a tool to improve military activities. Though Artificial Satellites have mostly orbited Earth‚ some have orbited the moon‚ the sun‚ asteroids‚ Venus‚ Mars and Jupiter; these satellites mostly study the
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What is Global Warming? Global Warming is defined as the increase of the average temperature on Earth. As the Earth is getting hotter‚ disasters like hurricanes‚ droughts and floods are getting more frequent. Over the last 100 years‚ the average temperature of the air near the Earth´s surface has risen a little less than 1° Celsius (0.74 ± 0.18°C‚ or 1.3 ± 0.32° Fahrenheit). Does not seem all that much? It is responsible for the conspicuous increase in storms‚ floods and raging forest fires we
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interaction is creating holes in the ozone‚ how we have created the enhanced greenhouse effect and contributing to global warming. The ozone is a thin layer of O3 that surrounds the earth and helps to regulate climate and temperature. Without the ozone there would be a lot more insolation and the earth would probably be too hot to populate. Chlorofluorocarbons or CFC’s were used in refrigerators‚ air conditioners‚ aerosol cans and have also been used in fire fighting. In
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SOLAR SYSTEM About 5 Billion years ago‚ y There was no Sun‚ no Earth& no Moon y Only cosmic dust and gasses drifted in the darkness of space SOLAR SYSTEM THEORY The solar system was formed by a slowly spinning cloud of gas and cosmic dust‚ gradually the cloud began to spin faster and faster this formed a large spinning whirl at the centre and smaller whirls surrounding it at various distances. SOLAR SYSTEM THEORY The huge and heavy centre became hot enough to start thermo nuclear
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What is a satellite? A satellite is a small thing orbiting or circling a larger thing. The complete path it follows is called an orbit. The moon is a example of a natural satellite of the earth. Manmade‚ or artificial satellites are placed into orbit by rockets or space shuttles. After World War II‚ the former Soviet Union successfully launched Sputnik I‚ the first artificial satellite in 1951‚ into space. In 1958‚ the United States launched its first artificial satellite Telstar I into orbit.
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