Linggo, Hulyo 31, 2011

The Role of Hydrosphere on Earth



                     Before I illustrate the importance of hydrosphere on earth, I will define first the meaning of hydrosphere. The hydrosphere is often called the "water sphere" as it includes all the earth's water found in oceans, streams, lakes, the soil, groundwater, and in the air. Hydrosphere refers to that portion of Earth that is composed of water. The properties of water: colorless, odorless, tasteless, and universal solvent.
The importance of hydrosphere on earth. It is essential to life, without water humans would die in a week. Human, plants, animals cannot live without water. Everyday we use water in cleaning, washing our clothes everything that uses water. Humans use water in number of ways. We use water in drinking, in cleaning our body.  The human body is mostly water. Water has a very big role in our daily lives. Plants need water in order to grow and produce fruits. Animals need water in order to live and so us humans. All the things that come out from the water can be really useful to us. Fishes desperately needs water. Without water all the living things in this world will die in just a week. Water can also be used to generate electricity through hydropower.
These are just a few of the very important functions that water plays on our planet.


Biyernes, Hulyo 1, 2011

The effects of science and technology in our lives


All things in this world have advantage and disadvantages. One of the example is science and technology. It has a big role in our daily life. 


The advantage of  science and technology is we can invent more things to make our work more easier, enjoyable and  productive. We can discover new things that can broaden our knowledge. We can communicate to other people using cellphones and computers. The companies will not hire many employees because of the presence of the machines. With science and technology the people will have a higher standard of living.




This are the disadvantages of science and technology. We the people will become lazy and irresponsible. We will be dependent in the machines that has been invented, if the machine will fail our work will become idle. There are machines that can destroy our environment and can affect our health. One of the example is weapon that can cause chaos. The science and technology have a big help in our life but  if we rely on it too much we are the one's will suffer. The factories and vehicles that uses gasoline can damage the ozone layer which can causes global warming.


                                                                    That's how  science and technology affect our lives.