A sea generally refers to a large body of salt water. Most commonly, sea refers to a large expanse of saline water connected with an ocean, and it is commonly used as a synonym for ocean. It is also used sometimes to describe a large saline lake that lacks a natural outlet, such as the Caspian Sea.
Based on sea habitats, scientist divided sea area into four zones. They are reefs, deep sea, open ocean, and intertidal zone.
Reefs comprise some of the densest and most diverse habitats in the world. The best-known types of reefs are tropicalcoral reefs which exist in most tropical waters; however, reefs can also exist in cold water. Reefs are built up by corals and other calcium-depositing animals. Coral reefs also support a huge community of life, including the corals themselves, their symbiotic zooxanthellae, tropical fish and many other organisms.
The deep sea is considered to start at the aphotic zone, the point where sunlight loses its power of transference through the water. The deepest recorded sea measure to date is the Mariana Trench, near the Philippines, in the Pacific Ocean at 10,924 m. At such depths, water pressure is extreme and there is no sunlight, but some life still exists. Many life forms that live at these depths have the ability to create their own light.
The open ocean is relatively unproductive because of a lack of nutrients, yet because it is so vast, in total it produces the most primary productivity. Much of the aphotic zone`s energy is supplied by the open ocean. The open ocean consists mostly of jellyfish and its predators such as the mola mola.
Intertidal zones, those areas close to shore, are constantly being exposed and covered by the ocean`s tides. A huge array of life lives within this zone.
What is the text about?
What kind of text is it?
What is the purpose of writing the texts?
To describe the sea in detail
To discuss about the sea
To tell one’s experience about the sea
To describe about the sea in general
What is the first paragraf about?
The four area of sea
The open ocean
What sea is
The habitats of the sea
Where do most of the sea habitats live?
In the reefs
In the deep sea
In the open ocean
In the intertidal zone
From the text we can conclude that the Caspian Sea is … the ocean
not connected with
a part of
Which of the statements is correct based on the text?
Reefs only exist in the hot water
Mola-mola likes eating jellyfish
Fish cannot live in the deep sea
All living things in the deep sea can create their own light
, … yet because it is so vast, in total it produces the most primary productivity.
The underlined word refers to ….
For many years, many people believed that the cleverest animals after man were the chimpanzees. Now, however, there is proof that dolphins may be even cleverer than these big apes.
Although a dolphin lives in the sea it is not a fish. It is a mammal. It is in many ways, therefore, like a human being.
Dolphins have a simple language. They are able to talk to one another. It may be possible for man to learn how to talk to dolphins. But this will not be easy because dolphins cannot hear the kind of sounds man can make. If man wants to talk to dolphins, therefore, he will have to make a third language which both he and the dolphins can understand.
Dolphins are also very friendly toward man. They often follow ships. There are many stories about dolphins guiding ships through difficult and dangerous water.
The text tells us about …..
The fourth paragraf tells us …..
How dolphins help man
How genius the dolphins are
How friendly man to dolphins
How diligent the dolphins are
Which statement is TRUE?
Dolphins are fish
Dolphins are kind-hearted animals
Dolphins’ sense of hearing is very sharp
Chimpanzees are the cleverest animals in the world
The text above is in the form of …….
To tell the factual information, the writer mostly uses ……..
A common misconception is that the oceans are blue primarily because the sky is blue. In fact, water has a very slight blue color in large volumes. The primary cause is the absorption by the water molecules` nuclei of red photons from the incoming light.
The ocean has a significant effect on the biosphere. Oceanic evaporation, as a phase of the water cycle, is the source of most rainfall, and ocean temperatures determine climate and wind patterns that affect life on land. Life within the ocean evolved 3 billion years prior to life on land. Both the depth and distance from shore strongly influence the amount and kinds of plants and animals that live there.
What is the text above mostly about?
Ocean and life
The purpose of the text is to ….
Describe the life in the ocean
Explain the meaning of ocean
Describe the ocean in general
Amuse the readers about the ocean
Which statement is WRONG about the text above?
Ocean takes a big part in water cycle
The ocean’s color is the reflection of the sky
Ocean is much larger than a sea.
There are less than four oceans in the earth.
What is the third paragraf about?
The ocean and life
Where the ocean’s color is from
What ocean is
The division of the ocean
Many people imagine the sea-horse to be real horse living in the sea. This is not true at all. The sea-horse is so called because it is a tiny creature with a horse – liked head which lives in the sea.
Sea – horse are found mostly in warm seas. They have a long, flexible tail which is used for wrapping around weeds for support. They swim I upright position, their movements being helped by a rapidly oscillating fin on their back. The male sea – horse lays her eggs in this pouch.
The most remarkable thing about the sea – horse is that part of the process of reproduction is taken over by the male creature. One the female sea – horse has laid her eggs in the male creature’s pouch, she leaves. The hatching of the egg is done by the male fish.
Mating begins with the male and the female sea – horses doing courtship dance. The male and female creatures swim around each other in circles. At the end of the dance, the male appears to bow to its partner; but in actually, the male is banding to pump water from his pouch. Next, the female fish lays eggs into the male’s pouch. About two hundred eggs are laid. The pouch, then close up. The female sea-horse now swims away, leaving the male sea-horse to do hatching.
The eggs are hatched about a month later. The young sea-horses are ejected from the male creature’s pouch by means of muscular contractions.
The sea – horse feeds on tiny fish the creatures sucking them into its month.