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22
dreds of thousands of acres of trees disappear in countries all around the world. In some
countries, these trees are used for fuel. In other countries, trees are destroyed to build
housing developments and shopping centers. Saving trees has become a major cultural
and economic issue in many areas of the world.
Trees are essential to our survival. They are a major part of the process of photo-
synthesis. Photosynthesis is the process in which green plants use carbon dioxide to
produce oxygen, and oxygen is something all of us need. The fewer trees there are, the
more this affects our ability to breathe.
Trees are also important in the development of many years. However, those who
use natural medicines have always known how important trees are. Now scientists are
agreeing with them. Many drugs come from the leaves of certain trees, along with other
herbs and plants.
In rural areas, farmers have always known how important trees are to soil con-
servation. This is why you’ll usually see trees lining a field. Tree roots help the soil in
place, and are also a factor in water distribution deep beneath the ground.
Finally, we should save trees from disappearing because they provide so much
pleasure. “I think that I shall never see a poem as lovely as a tree”, wrote a poet. That is
the truth. A tall, stately tree is beautiful to look at, and pleasing to the soul. It is also a
great place to find shade on a hot summer’s day. For practical and emotional reasons,
we need to preserve our planet’s trees.
15 Do you agree or disagree with the following statement? A zoo has no useful
purpose. Use specific reasons and examples to explain your answer.
Zoos are often controversial because many people believe they are unnecessary
or even harmful. If property managed, I feel that zoos have a lot of value. In fact, I be-
lieve zoos are useful in two main ways: educating the general public and advancing
scientific research.
Zoos can be wonderfully educational places. They provide a safe, controlled en-
vironment to learn about a specific species. Children can feel safe exploring the world
of the chimpanzee there, and adults can learn about and see types of birds they’ve never
seen before. Unlike in the wild, there’s no worry of being physically harmed by an ani-
mal.
Zoos are also important for the research opportunities they provide. Research is
safer and easier to conduct than in the wild. Scientists can feel secure in the confined
area of the zoo For example, while conducting a medical experiment in the open field,
scientists have to worry about both the animal they are working with, and also other
animals nearby. In zoos, however, they need only worry about the research subject.
22
dreds of thousands of acres of trees disappear in countries all around the world. In some
countries, these trees are used for fuel. In other countries, trees are destroyed to build
housing developments and shopping centers. Saving trees has become a major cultural
and economic issue in many areas of the world.
Trees are essential to our survival. They are a major part of the process of photo-
synthesis. Photosynthesis is the process in which green plants use carbon dioxide to
produce oxygen, and oxygen is something all of us need. The fewer trees there are, the
more this affects our ability to breathe.
Trees are also important in the development of many years. However, those who
use natural medicines have always known how important trees are. Now scientists are
agreeing with them. Many drugs come from the leaves of certain trees, along with other
herbs and plants.
In rural areas, farmers have always known how important trees are to soil con-
servation. This is why you’ll usually see trees lining a field. Tree roots help the soil in
place, and are also a factor in water distribution deep beneath the ground.
Finally, we should save trees from disappearing because they provide so much
pleasure. “I think that I shall never see a poem as lovely as a tree”, wrote a poet. That is
the truth. A tall, stately tree is beautiful to look at, and pleasing to the soul. It is also a
great place to find shade on a hot summer’s day. For practical and emotional reasons,
we need to preserve our planet’s trees.
15 Do you agree or disagree with the following statement? A zoo has no useful
purpose. Use specific reasons and examples to explain your answer.
Zoos are often controversial because many people believe they are unnecessary
or even harmful. If property managed, I feel that zoos have a lot of value. In fact, I be-
lieve zoos are useful in two main ways: educating the general public and advancing
scientific research.
Zoos can be wonderfully educational places. They provide a safe, controlled en-
vironment to learn about a specific species. Children can feel safe exploring the world
of the chimpanzee there, and adults can learn about and see types of birds they’ve never
seen before. Unlike in the wild, there’s no worry of being physically harmed by an ani-
mal.
Zoos are also important for the research opportunities they provide. Research is
safer and easier to conduct than in the wild. Scientists can feel secure in the confined
area of the zoo For example, while conducting a medical experiment in the open field,
scientists have to worry about both the animal they are working with, and also other
animals nearby. In zoos, however, they need only worry about the research subject.
