Ozone Layer Depletion

Ozone is an extremely reactive molecule that is consist of three oxygen atoms. It is repetitively being produced and crashed in the region of the atmosphere that’s approximately 6.2 to 31 miles above Earth, the stratosphere.

At present, there is a prevalent alarm that the ozone layer is declining due to the emission of toxic waste containing the substances chlorine and bromine. As a result, large amounts of UVB rays reach Earth. Continue reading Ozone Layer Depletion

Health and Environmental Impact of Tropospheric Ozone

The tropospheric ozone (bad ozone) is not released directly into the air but is produced by chemical reactions between nitrogen oxides and volatile organic compounds in the presence of the sun’s rays.

Oxides of nitrogen (NOx) and volatile organic compounds (VOC) are emitted from motor vehicle exhaust, industrial and electrical facilities, chemical solvents, and gasoline vapors.

Inhaling ozone can cause a range of respiratory problems. Tropospheric ozone can cause irritation to your lungs and as a result, you will start to experience chest pain, throat irritation, and congestion. Ozone can also deteriorate lung function which causes the difficulty in breathing. People with asthma find it even harder to breath. As ozone levels increase, people become more sensitive to allergens – triggers asthma attacks. Furthermore, ground-level ozone can aggravate chronic lung diseases like bronchitis and emphysema. Continue reading Health and Environmental Impact of Tropospheric Ozone

The Ozone Layer

The Earth’s atmosphere has a component that functions to absorb most of the ultraviolet (UV) rays coming from the sun. This is called ozone, sometimes referred to as ozone shield.

For every 10 million air molecules, there are approximately three ozone molecules. Ninety percent of the ozone layer is part of the stratosphere, the atmospheric layer which sits 6-10 miles above the surface of the Earth and extends up to 30 miles high. While the remaining ozone resides in the lowest atmospheric layer known as the troposphere.

Even though the ozone molecules sit in two different atmospheric layers, all of them have the same chemical composition – O3 (three oxygen atoms). Continue reading The Ozone Layer

Milky Way Galaxy and Our Solar System

There are a few theories that explain the origin of the universe. The most popular theory —the Big Bang – states that it all started from a small singularity which then evolved as years passed until it formed into the cosmos that we now called the universe.

The major components of the universe are the galaxies and the solar systems. Let us focus on our galaxy, the Milky Way.

Milky Way is the galaxy which contains our Solar System. The solar system is composed of the sun, planets, moons, asteroids, meteoroids, comets, minor planets, interplanetary dust and particles, and gas.

The Sun
The sun contains 99.8% of the total mass of our solar system that’s why it is considered to be the largest object in it. Furthermore, it is regarded as a star since its composition is similar to that of the stars found in the solar system. It is made of hydrogen (70%), helium (28%), and other metals (amounting to less than 2%). But this composition changes gradually since hydrogen is converted into helium in its core, as time goes by. The sun’s energy, which is approximately 386 billion MW, is generated by nuclear fusion.  In each second, 620 million metric tons of hydrogen are converted into tons of helium and gamma rays. The energy that is supplied by the sun is the main and the most important component of all solar panels like the ones being marketed by http://getpoweredbysun.com. Continue reading Milky Way Galaxy and Our Solar System

What Is Solar System

A solar system refers to a star and all objects that revolve around it — planets, natural satellites, meteoroids, asteroids, and comets.

Our solar system, which is part of the Milky Way galaxy, consists of the sun — also considered as a star—the planets that travel in orbit around it and their respective natural satellites (the moon for instance); the dwarf planets, asteroids, and comets. Continue reading What Is Solar System

The Universe

The universe is a huge space that holds all matter, from the tiniest form to the largest.

How large is the universe?
Experts have tried to measure the universe through a device called spectroscope. In fact, they do it all the time just to see how far and how big our universe is. In spite of this, they fail to get the exact measurement. Experts claim that the universe is still expanding outward, in every direction. Continue reading The Universe

The Greenhouse Effect

The term “greenhouse” refers to the house that is made of glass where plants are kept and grown during the winter season. People typically use it in order to protect the plants during the cold weather. Since the walls and the roof are made up of glass, the sun’s energy that is absorbed during the warm weather cannot easily escape. Because of this, the plants inside it have enough heat to survive the cold weather.

What is the greenhouse effect?

Greenhouse effect is the term given to the phenomenon where the earth’s atmosphere gets warmer as the greenhouse gases absorb some of the infrared radiation before all of it escapes to the outer space. Continue reading The Greenhouse Effect

Solar System Planets

Our solar system is consisting of the sun, which is an average-sized star, and eight planets namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Not only that, it also includes the satellites that each of the planets has, comets, asteroid belts and asteroids, meteoroid, and the interplanetary medium.

Originally, there were nine planets, Pluto was the ninth. However, during the late 1990’s astronomers began to discuss whether Pluto was a planet. In 2006, the International Astronomical Union decided to call Pluto a dwarf planet. Continue reading Solar System Planets

The Earth’s Structure and Composition

Earth has three interior layers: crust, mantle, and core. Each layer is subdivided into two. The crust has two types: the continental crust and the oceanic crust; the mantle has upper and lower parts; and the there are two parts of the core, inner and outer.

The different layers of the Earth
The crust of the earth is the outermost layer which is classified into two types according to its composition. These two are the continental crust and the oceanic crust. Continue reading The Earth’s Structure and Composition