Kristel Mae Tagle
Bs BIOLOGY III
Earth is the third planet from the sun. The place where many organisms exist, enhance with the beauty of nature. Packed with rich biodiversity, streams and rivers. Have you seen this place before? Maybe yes, but for how long? How much it matter to us if it is lost? What can we do to save them? Those are questions that that will hopefully strike our nerves. In this new millennium, many changes have occurred that altered the condition of the nature. Nearly all the natural rainforest has gone from several countries. It’s very alarming to know that our planet’s wealth is starting to vanish that provides us the basic-life supporting services. Imagine life without these resources, if we don’t put into effort conservation, were not going to only make our lives worse but it also going to impact wild life. People must keep in mind that gross materialism and the search of material wealth is not the only thing in life. Many species of animals are now in massive decline and various factors contribute to extinction. The Amur leopard that is rare and highly endangered and the wild Bactrian camel, the most endangered large animal are threatened to disappear. Nearly half of the world’s frog is extinct by now because of the fungus that hit them. Forest elephants and Walia Ilex are also on the top list. Folks are shooting them for their bush meat so they tend to go to sheer cliff where they are safe from guns and snares. If your protecting the species, first thing you should know is how close to extinction the species are. Extinction is driven by habitat change, release of pollution into the environment, by global warming. All these things are combining in a series of forces that likely to lead if we don’t take action very soon to the extinction of a large proportion of the wild life species. We can’t concentrate in only important species because every species is important. We need a great diversity of species. We need them all...
...We have inherited much from planetEarth, such as natural resources and every single one of the living creatures that planetearth 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 population decrease to dangerous levels but not anywhere close to the extinction rates of today. As selfish as humans might be, now is the time for us to take responsibility for our actions and start caring about our soon to be extinct wild life.
Ever since the Middle Ages, the world has had problems with keeping constant number of wild life animals; however, in the past, the problems were mainly caused because of over harvesting. Nevertheless, today we are facing a greater problem, which is global warming. Gases released into the atmosphere layer up in addition to the ozone layer and trap more light waves in Earth’s atmosphere that results in heat cause global warming. Higher temperatures affect the ecosystem, the outcome being longer and warmer summers with fewer rains. Living organisms have to adjust and adapt to warmer temperatures, less habitat, and...
TEACHER ERICKA SANTIESTEBAN
COLEGIO LA ROCA
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world, the Blue Planet, or by its Latin name, Terra.Earth formed approximately 4.54 billion years ago, and life appeared on its surface within one billion years. Earth's biosphere then significantly altered the atmospheric and other basic physical conditions, which enabled the proliferation of organisms as well as the formation of the ozone layer, which together with Earth's magnetic field blocked harmful solar radiation, and permitted formerly ocean-confined life to move safely to land. The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist. Estimates on how much longer the planet will be able to continue to support life range from500 million years (myr), to as long as 2.3 billion years (byr).
Earth's lithosphere is divided into several rigid segments, or tectonic plates, that migrate across the surface over periods of many millions of years. About 71% of the surface is covered by salt water oceans, with the remainder consisting of continents...
...All planets except Mercury and Venus have at least one moon. Saturn has the greatest number of moons—18. In 1995, the Hubble Space Telescope detected what appeared to be four additional moons of Saturn; however, that discovery has yet to be confirmed.
Planet | Number of Moons | Names of Moons |
Mercury | 0 | |
Venus | 0 | |
Earth | 1 | The Moon (sometimes called Luna) |
Mars | 2 | Phobos, Deimos |
Jupiter | 16* | Metis, Adrastea, Amalthea, Thebe, Io, Europa, Ganymede, Callisto, Leda, Himalia, Lysithia, Elara, Ananke, Carme, Pasiphae, Sinope |
Saturn | 18* | Atlas, 1981S13 (unnamed as yet), Prometheus, Pandora, Epimetheus, Janus, Mimas, Enceladus, Ththys, Telesto, Calypso, Dione, Helene, Rhea, Titan, Hyperion, Iapetus, Phoebe |
Uranus | 15 | Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon, |
Neptune | 8 | Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton, Nereid, |
Pluto | 1 | Charon |
The nebular hypothesis was first proposed in 1734 by Emanuel Swedenborg and later elaborated and expanded upon by Immanuel Kant in 1755. A similar theory was independently formulated by Pierre-Simon Laplace in 1796.
In 1749, Georges-Louis Leclerc, Comte de Buffon conceived the idea that the planets were formed when a comet collided with...
The planetEarth is being scarred. Every day the people of the planetearth are polluting the planet's air, water and land. These are all natural resources that are necessary for our survival on this planet. Yet, we continue to abuse our planet. Our world population is growing out of control. The simple lesson of supply and demand tells us that we will need more resources in order to support the booming population. One of the most important factors in survival is food supply. Without enough food, we will not survive. Unfortunately, our forest ecosystems are paying the price for the food demand. Deforestation is a major problem on our planet. It is something that must be carefully monitored and regulated.
Deforestation is a practice that has been taking place for thousands of years. Human beings have found it necessary to clear out the forests for settlement and cropland. Although there is no evidence as to how much of the planet's forests has been cut down, it is obvious that this valuable ecosystem is declining. Studies estimate that, original forest cover has been reduced by nearly 50 percent..
With the intention of a better understanding of systematically destroyed the various ecosystem by man. I hope this will ad a little understanding about the causes of deforestation and...
Ranging between 4.95 and 30.4 AU away from the Sun are the Jovian planets. Jovian means of or relating to either the planet or the mythological god, Jupiter. The Jovian planets, also referred to as gas giants, are Jupiter, Saturn, Uranus, and Neptune. These planets all fit the category of being a Jovian planet due to the mutual inclusiveness of a thick atmosphere composed of hydrogen and helium. These planets are not solid, they only become denser further towards the core. The inner structure of the planet have traces of metals, water, methane and ammonia although it’s possible Neptune and Uranus have liquid cores. There are many moons that orbit and many rings that encircle each planet. Their masses are incredibly high numbers, the Jovians total about 98% of the mass of all the planets in our Solar System, Jupiter alone near 75%. To scale these masses, a Jovian planet is fifteen to almost three hundred twenty times greater in mass than Earth.
Jupiter is by far the largest Jovian planet in addition to overall largest planet in the Solar System. It is nearly three hundred twenty times the mass of Earth and the fifth planet from the Sun. Jupiter, discovered in ancient times, was named after the Roman god, Jupiter or...
...this planet is the only home we’ve got. It would be useful to know, then, whether it will continue to be habitable.
Sometimes contemplating the future just means wondering whether it will snow tomorrow, or whether it will be a hot summer this year. We can think bigger, though. What will the climate be like a hundred years from now, or a thousand or a million? Will the greenhouse gases in our atmosphere ever reach an upper limit and start to diminish? Will ourplanet ultimately end up like the super-heated surface of Venus, or like the frozen wasteland of Mars, or will it continue to move up and down within a range of temperatures that are hospitable to life as we know it?
We can think even bigger: climate is just one aspect of the evolving system that is the planetEarth. Will the plate tectonics that cause earthquakes and volcanoes ever decrease in activity? As Earth’s human population continues to grow, how can urban centres in areas of high risk – flood zones, fault lines, etc. – cope with or plan for the natural hazards they will inevitably face. How would it change things if the great oceanic currents were radically altered? Will there be mass extinctions in the future as there have been in the past? And most important, how do air and earth and water affect one another to shape the Earth’s evolution? What is the relationship between changes in the Earth’s upper atmosphere and its inner core?
...separates from the four basic forces.
3. Strong nuclear forces separate out (quarks/electrons and antimatter form).
4. Quarks combine to form protons/neutrons (this forms the universe according to the theory).
5. Electromagnetic and weak atomic forces have separated.
6. Hydrogen and Helium nuclei formed
7. Electrons combine with nuclei and create whole H/He atoms.
8. Expansion and cooling continued and nuclear reactions stopped.
9. The universe became matter-dominated rather than radiation-dominated.
10. The radiation continued to cool as the universe expanded.
11. Matter in the universe formed clouds and groups of clouds that eventually collapsed to form galaxies and clusters of galaxies. In the galaxies were formed the stars, planets and other bodies.
THE END OF THE UNIVERSE
Basic question to such topic: Is the universe open or closed?
1. If the universe is “open” – it will have no definite end. It will just gradually dissipate as temperatures will continue to decline until they reach absolute zero. Hydrogen will be consumed by about 10 years after the birth of the universe and all the stars will burn out. Galaxies will disintegrate and their constituent stars will be lost to galactic space in 10 years.
2. If the universe is “closed” – some 50 billion years from now, it will stop expanding and start contracting. Galaxies will rush toward each other. The universe will once again become hot and compressed,...
Do you know that the life in the Earth can disappear if people do not care for the forests? Do you know why? There is a big reason for this to happen. First forests are considered like the lungs of the Earth because there are a lot of plants in these places and they purify the air. Second, forests have the power to control weather, for instance the rain, wind, and others. Finally, these places are the home of many animals and they balance the nature inside these habitats. In fact, forests are very important in the world because they have valuable benefits; for example, they balance the weather, purify the air and protect animals.
Scientists are concerned about the destruction of forests because they are very important to balance the weather in the world and people have to care for these amazing places. First, forests have the control of the principal components of weather because each tree has specific functions to make that possible. For example, they can control the wind, the moisture of a place, the amount of water in the rain, and the temperature of the place where they are located. Subsequently, forests create microclimates inside the place where they are located. In fact, these places are humid and rainy all the time, but depending the kind of forests, it can change, sometimes they can be hot and dry. On the other hand, many people do not care for these places and they cause a serious damage to the world. For instance,...