My task while senior high school at SMAN 1 BENGKAYANG
1) Rain
always comes from clouds. But where do clouds come from? How does all that
water get into the sky? Think about your bathroom. There is hot water in your
bath. Steam goes up from the hot water. The steam makes small clouds in the
bathroom. These warm clouds meet the cold walls and windows, and then we see
small drops of water on the walls and windows.
The
world is like your bathroom. The water in the oceans is warm when the sun
shines on it. Some of this water goes up into the sky and makes clouds. The
wind carries the clouds for hundreds of kilometres. Then the clouds meet cold
air in the sky, and we see drops of water. The drops of water are rain. The
rain falls and runs into rivers. Rivers run into oceans. And the water from
oceans makes clouds and more rain. So water is always moving from oceans to
clouds to rain to rivers and to oceans.
So the rain on your head was on other heads before! The water in your garden
was in other gardens in other countries.
2) Insecticide
is a substance that kills insects.
Insecticides are sometimes called pesticides. Farmers and gardeners usually use
insecticides to protect plants and animals . Apple trees must be sprayed, or
many of the apples will become "wormy" with moth larvae (young). Many
livestock owners spray their livestock or dip them in an insecticide solution
to protect them from lies, lice, mites, and ticks. These pests spread such
diseases as cattle fever and sheep scab. Diseases such as malaria and typhus
can be controlled by using insecticides to treat the breeding places of the
insects that spread the diseases.
3) Agricultural
pesticides prevent a monetary loss of about $9 billion each year in the U.S.
For every $1 invested in pesticides, the American Farmer gets about $4 in
return. These benefits, however, must be weighed against the costs to society
of using pesticides, as seen in the banning of ethylene dibromide in the early
1980s.
These
costs include human poisonings, fish deaths, honey bee poisonings, and the contamination
of livestock products. The environmental and social costs of pesticide use in
the U.S. have been estimated to be at least $1 billion each year. Thus,
although pesticides are valuable for agriculture, they also can cause serious
harm.
4) National
exam becomes the hot topic in most of discussions. Though the Supreme Court has
rejected an appeal by the government on the organization of the national exams,
the controversy over whether it is necessary to maintain the National Exams
(UN) has continued.
Some
debates include the primary questions such as; does the quality of Indonesia
education depend on the national exam?, will the quality of the Indonesian
education system worsen without national exam?
People,
who support the national exam explain that the quality of the Indonesia
education system will drop without the national exam, so they try to defend the
current system.
However
there are people who disagree with the opinion. Those who against this national
exam kept in our high school education say that it doesn't need the national
exams because the quality of education does not just depend on the national
exam. Further, the national exam only measures a small portion of students'
competence in specific subjects, and does not measure students' competences
throughout the semester.
In
fact, the national examination can still be useful as an instrument to evaluate
or detect the level of students' cognitive competence in several subjects, on a
national scale.
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