Thursday, August 6, 2009

What do you wish to study about water cycle and water resource scarcity?
I wish to study about how the water cycle goes about and what keeps it going day by day. I would also want to learn how do the people solve the problem of water resource scarcity.

These are the information I found.
The Water Cycle is also known as the hydrologic cycle and it is the continuous movement of water below the surface of the earth. Water changes state among solid, liquid and gaseous state. What keeps the water cycle going? Basically, the sun is the factor which keeps it going everyday. The sun heats up the oceans, rivers and reservoirs, thus causing the water to evaporate as vapour into the air. Transpiration also occurs when the water from the plant evaporates from the leaves and the soil. Rising air currents take the vapour up into the atmosphere where is cools to from water droplets as clouds. After some time, the clouds become so full of water that it releases the rainwater down onto earth. The cycle then continues from there.
To solve the water resource scarcity, Singapore has created NEwater where dirty or used water would be transported towards the NEwater plant through a channel. Upon reaching the plant, the workers there would use the advanced technology to clean, purify and remove all the dirty chemicals. After the process, the water would be transported to our homes back for use or bottled up for us to drink.


What do you wish to study about agricultural production?
In agriculture production, I wish to study about how much crops are produced in one season and also how much do the farmers pay by planting all the crops everytime. I would also like to study about each and every plant on how long it takes to grow and be harvested.

Agriculture refers to the production of crops through farming and foresting. There are many ways of farming. There is intensive farming where a small area is used but every square metres of land is used and there is also extensive farming where a big area is used but there is some space between the crops. There are also many different types of products the farm produces. The farm that produces only crops is said to be engaged in arable farming. One example is wet rice cultivation. When only animals are reared in a farm, the farm is known to be engaged in livestock farming. Those farm that produces both crops and animals are known as mixed farming. Farmers that produces crops for own use is known as subsistence farming while those for sale are known as commercial farming or cash crops. In some types of agriculture, farmers use simple tools to cultivate their crops and is known as low-tech farming. Other systems uses advanced machinery and computers to help the farmers and is known as high-tech farming. Singapore relies on high-tech farming so that we can save space and also save the amount of soil and water used. One example is the Hydroponics where plants are grown in a trough filled with nutrient solution instead of soil. Benefits of such farming is that high quality products are produced at a price that is reasonable.

This is the amount of crops produced in one season.

Cereals 2,263
Vegetables and melons 866
Roots and Tubers 715
Milk 619
Fruit 503
Meat 259
Oilcrops 133
Fish (2001 estimate) 130
Eggs 63
Pulses 60
Vegetable Fiber 30


What do you wish to study about water cycle affecting the agricultural production of a country?
I wish to study about whether having the water cycle is crucial to the growth of crops and whether without the water cycle will the crops grow properly. I would also like to find out which type of plants cannot withstand the water cycle and have to be planted during hot seasons.

The water cycle is essential to many types of crops grown in various countries. The crops need the water from the falling rain to grow well. However, some weak plants may not withstand rain or thunderstorms. Therefore, such crops need to be grown during the summer season while those plants who rely on the water cycle to survive have to be grown only during the rainy season. However, if the rain turns into a thunderstorm, some plants may not be able to take the strong winds and may be uprooted. Heavy rain will also flood the crops, causing them to die. That is why farmers have to be really careful on when to plant which crops and the methods used for the plants to withstand strong winds and heavy rains. If the heavy rain and thunderstorms occurs for a long period, crop may not be able to be grown during the long period and the farmers would have no crops to harvest and sell or for personal use. This affects the farmers income and also the growing of crops would be inaccurate.

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