The Hydrosphere

As far as we all know, the Earth that we live on is the 3rd planet on the solar system and it is the only planet that is able to support life.  Earth is just the right distance from the sun to have temperatures that are suitable for life to exist. Our planet also has water on its surface, which is something very unique. In fact, Earth is often called the 'Blue Planet' because most of it is covered in water. This water is made up of freshwater in rivers and lakes, the saltwater of the oceans and estuaries, groundwater and water vapour. Together, all these water bodies are called the hydrosphere.

The Hydrosphere or water is an important factor in our daily life because, when water is heated it evaporates and forms water vapour. When water vapour cools again, it condenses to form liquid water which eventually returns to the surface by precipitation like rain or snow. This cycle of water moving through the atmosphere and the energy changes that accompany it, is what drives weather patterns on earth and land plants absorb water through their roots and then transport this through their trunk, stems and leaves. This water is needed in photosynthesis, the food production process in plants. The large amount of water on our planet is something quite unique. In fact, about 71% of the earth is covered by water. Of this, almost 97% is found in the oceans as saltwater, about 2.2% occurs as a solid in ice sheets, while the remaining amount is available as freshwater. So from a human perspective, despite the vast amount of water on the planet, only a very small amount is actually available for human consumption or drinking or what so ever. Water is a part of living cells
Each cell in a living organism is made up of almost 75% water, and this allows the cell to function normally. In fact, most of the chemical reactions that occur in life, involve substances that are dissolved in water. Without water, cells would not be able to carry out their normal functions and life could not exist. Humans use water in a number of ways. Drinking water is obviously very important, but water is also used domestically like washing dishes, cleaning, etc. and in industry. Water can also be used to generate electricity through hydropower like what we can found now in Maria Christina Falls. Water have also a bad effects in our society because it can cause damage and it can also kill people like floods and tsunami.

 
The Hydrosphere is also an important part of weathering beacause it helps to break rock down into rock fragments and then soil and soil is the place where we live on and plant trees. That's why without water I can only say that we are not in this world now!

Let's start conserving water now and try to appreciate the things that we can found in our surroundings because every little thing that we can found in our environment is indeed in fact depends on water specially people, animals and plants.

Advantages and Disadvantages of Science and Technology

The Science and Technology have great effects in our society.



Globalization is such a commonly used term in the twentieth century. It simply means that the world has become affected economically, socially, politically and culturally through the advances of technology, transportation and communication. We cannot deny the facts that Science and Technology have positive and negative effects in our Society.
To begin with, globalization has contributed to the world's economies in many beneficial ways. The Advances in science and technology are allowed businesses to easily cross over territorial boundary lines, makes our life easier, it helps us organize our daily activities, our job can be done faster, easier to communicate other people in other places in just a second, helps us to understand other culture and society better and lots more and the Disadvantages of Science and Technology are can be easily manipulated by irresponsible persons, we'll be too independent in technology and without it we will fell hopeless, it affects our health and lifestyles, sometimes people can easily invade our privacy like hacking the systems and many more. The vast improvements made in the field of medicine have served to lengthen our life expectancy and to reduce the rate of infant mortality. The discovery of mechanization, in transportation, trains, planes and motor vehicle makes us easily go to other places easily. The invention of computers has assisted the process of calculation in laboratories but science has been responsible for pollution and has given us the nuclear bomb which threatens our very existence like what happened in nagasaki and hiroshima in world war 2. But what i can say is that the science is not the fault of all of that but what are the people's intention to use science in their bad motivation in their lives. In generalization, as far as what I learned or I should say as far as what I know Science and Technology have great affects in our society and community like advantages and disadvantages of our society but it can only occur when a person using it use it in good purposes or bad purposes. Just always remember that we people have the responsibilities in our own society and community.