Rabu, 13 November 2013
A PLATYPUS
Many people call
platypus duckbill because this animal has a bill like duckbill. Platypus is a
native Tasmania and southern and eastern Australia.
Platypus has a flat tail and webbed feet. Its body length is 30 to 45 cm and covered with a thick, and woolly layer of fur. Its bill is detecting prey and stirring up mud. Platypus' eyes and head are small. It has no ears but has ability to sense sound and light.
Platypus lives in streams, rivers, and lakes. Female platypus usually dig burrows in the streams or river banks. The burrows are blocked with soil to protect it from intruders and flooding. In the other hand, male platypus does not need any burrow to stay.
Platypus has a flat tail and webbed feet. Its body length is 30 to 45 cm and covered with a thick, and woolly layer of fur. Its bill is detecting prey and stirring up mud. Platypus' eyes and head are small. It has no ears but has ability to sense sound and light.
Platypus lives in streams, rivers, and lakes. Female platypus usually dig burrows in the streams or river banks. The burrows are blocked with soil to protect it from intruders and flooding. In the other hand, male platypus does not need any burrow to stay.
EXAMPLE OF REPORT TEXT ABOUT MANGROVE TREES
A mangrove is
a tropical marine tree. Mangroves have special aerial roots and
salt-filtering tap roots which enable them to thrive in brackish water.
Brackish water is salty but not as salty as sea water. Mangrove trees are
commonly planted and found in coastal areas. Mangroves can serve as walls of
protection for natural disaster in coastal area like tsunami .
According to BBC News, healthy mangrove forests had helped save lives in the
Asia disaster tsunami and people tended to respect these natural barriers even
more, especially after the tsunami.
There are several species of mangrove tree found all over the world. Some prefer more salinity, while others like to be very-close to a large fresh water source such as river. Some prefer areas that are sheltered from waves. Some species have their roots covered with sea water every day during high tide. Other species grow on dry land but are still part of the ecosystem. The Times of India reported that rare species of mangrove had been found and was also known as the looking-glass tree, probably because the leaves are silver-coated.
Mangroves need to keep their trunk and leave above the surface of the water. Yet they also need to be firmly attached to the ground so they are not moved by waves.
Any part of root that appears above the water flows oxygen to the plant under water surface. as the soil begin to build up, these roots procedure additional roots that become embedded in the soil.
There are several species of mangrove tree found all over the world. Some prefer more salinity, while others like to be very-close to a large fresh water source such as river. Some prefer areas that are sheltered from waves. Some species have their roots covered with sea water every day during high tide. Other species grow on dry land but are still part of the ecosystem. The Times of India reported that rare species of mangrove had been found and was also known as the looking-glass tree, probably because the leaves are silver-coated.
Mangroves need to keep their trunk and leave above the surface of the water. Yet they also need to be firmly attached to the ground so they are not moved by waves.
Any part of root that appears above the water flows oxygen to the plant under water surface. as the soil begin to build up, these roots procedure additional roots that become embedded in the soil.
KINDS OF EARTHQUAKE
Earthquake often happens around us. It brings great damages. Earthquake is hard to be predicted and that makes lot victims.
Actually there are three kinds of earthquake. This kinds of earthquake are commonly base on the factor and geological area where the earthquakes happen. These three kinds of earthquake are tectonic,volcanic and explosion.
Tectonic earthquakes is most common one. This kind of earthquake happens while earth's crust rocks break because of the geological strength created by moving of the earth's plates. Volcanic earthquakes happen exactly with volcanic activity. Volcanic earthquakes are when the volcano produces acidic lava, which drys quickly, when it drys quickly it blocks the top of the volcano. This make no more magma can escape. Pressure starts to build up and eventually the acidic lava can no longer stand the pressure. So the volcano is free to explode, the pressure is released so fast that an earthquake is caused. A volcanic earthquake is usually kept within 10-20 miles of the volcano.Explosion earthquakes are the result of the collapse earthquakes that are small earthquakes occurring in underground mines and caverns.
HUMAN BODY ENERGY
The energy value of food is usually measured in calories. A calorie is the amount of heat which is required to raise the temperature of 1 kg of water by 1 degree C. The number of calories which people need per day varies. It depends on the activity which the people are involved in. For example; people will need more calories for standing than for sitting, people need more for running than for walking, etc.
The energy which is provided by food is in the form of three kinds of chemical substances. They are carbohydrate, protein and fat. Carbohydrate provides 8.8 calories per gram (cal/gm) of energy, protein 4.0 cal/gm and fat 8.0 cal/gm. Each food contains different proportion of these substances.These three chemical substances are all important for body staying healthy.
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