How Tidal Currents Happen Tidal currents, as their name suggests, are generated by tides. Tides are essentially long, slow waves created· by the gravitational pull of the moon, and to a lesser degree, the sun, on the earth surface. Since the moon is so much closer to the earth than the sun, its pull has more influence on the tides. The moon's gravitational pull forces the ocean to bulge outwards on opposite sides of the earth, which causes a rise in the water level in places that are aligned with the moon and a decrease in water levels halfway betweet those two places. This rise in water level is accompanied by a horizontal movement of water called the tidal current. Although tides and tidal currents don't have much impact in the open pceans, they can create a rapid current of up to 15.5 miles (25 kilometers) per hour when they flow in and out or narrower areas like bays, estuaries, and harbors. Fast tidal currents toss sediment around and affect plant and animal life. Currents also may transfer a fish's eggs from an estuary out into the open sea or carry nutrients that the fish needs from the sea into the estuary. When the tide is rising and the flow of the current is directed towards the shore, the tidal current is called the flood current. When the tide is receding and the current is directed back out to sea, it is called the ebb current. Because the relative positions of the moon, sun, and earth change at a known rate, tidal currents are predictable. Sumber: http://britishcourse.com/ "Currents also may transfer a fish's eggs from an estuary out into the open sea ... " The underlined word is closest in meaning to ... A. lake B. mouth C. river D. gulf E. cape

Question

Jawaban dari soal ini adalah B. mouth.

Soal menanyakan persamaan dari kata "estuary".

Kata "estuary" terdapat dalam kalimat, "Currents also may transfer a fish's eggs from an estuary out into the open sea or carry nutrients that the fish needs from the sea into the estuary." (Arus juga dapat memindahkan telur ikan dari muara ke laut lepas atau membawa nutrisi yang dibutuhkan ikan dari laut ke muara.)

Kata "estuary" maksudnya adalah "muara". Kata yang juga memiliki maksud "muara" adalah "mouth".

Jadi, jawaban yang tepat adalah B. mouth.

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