Question 11 MarkWhere does the water of puddles go?AnswerThe water of puddles drains into the ground, evaporates or absorbed by the air. View full question & answer→
Question 21 MarkWhat process involves changing from a gaseous to a liquid or solid state?AnswerThe process that involves changing from a gaseous to a liquid or solid state is condensation. View full question & answer→
Question 31 MarkWhat is the unique feature of the Dead Sea in Israel that allows swimmers to float?AnswerThe unique feature of the Dead Sea in Israel is its high salinity of 340 grams per liter, which makes swimmers float on its surface. View full question & answer→
Question 41 MarkWhich ocean current is an example of a warm current?AnswerAn example of a warm ocean current is the Gulf Stream. View full question & answer→
Question 51 MarkWhat is the average salinity of the Earth's oceans?AnswerThe average salinity of the Earth's oceans is 35 parts per thousand. View full question & answer→
Question 61 MarkGive an example of a cold current.AnswerAn example of a cold ocean current is the Labrador current. View full question & answer→
Question 71 MarkWhat is the general movement of warm ocean currents?AnswerWarm ocean currents generally move from the equator toward the poles. View full question & answer→
Question 81 MarkWhat does the term tsunami mean in Japanese?AnswerThe term tsunami in Japanese means harbour waves. View full question & answer→
Question 91 MarkWhat event can trigger the formation of tsunamis?AnswerEvents like earthquakes, volcanic eruptions, or underwater landslides can trigger the formation of tsunamis. View full question & answer→
Question 101 MarkWhat are some major sources of fresh water on Earth?AnswerMajor sources of fresh water on Earth include rivers, ponds, springs and glaciers. View full question & answer→
Question 111 MarkWhat percentage of Earth's water is saline and found in oceans and seas?Answer97.3% of Earth's water is saline and is found in oceans and seas. View full question & answer→
Question 121 MarkWhat are ocean currents?AnswerOcean currents are streams of water flowing constantly on the ocean surface in definite directions which may be warm or cold. View full question & answer→
Question 131 MarkWhat are tides and how are they caused?AnswerThe rhythmic rise and fall of ocean water twice in a day is called a tide. They are caused by strong gravitational pull exerted by the Sun and the Moon on the Earth's surface. View full question & answer→
Question 141 MarkWhich factors affect the movement of ocean water?AnswerThe factors which affect the movement of ocean water are temperature, winds, gravitational pull of the Sun, the Earth and the Moon. View full question & answer→
Question 151 MarkWhat are the factors affecting the height of the waves?AnswerThe factors affecting the height of waves are wind, gravitational pull of Sun and Moon, earthquake, volcanic eruption and under water landslide. View full question & answer→
Question 161 MarkWhat is water cycle?AnswerWater cycle is the process by which water continually changes its form and circulates between oceans, atmosphere and land. View full question & answer→
Question 171 MarkWhat is precipitation?AnswerPrecipitation is defined as the falling of moisture on the Earth in the form of rain, snow, hail, sleet or mist View full question & answer→
Question 181 MarkIs all water on the Earth available to us?AnswerNo, only 3% is fresh water. Its 0.3% is available to us. View full question & answer→