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The gravity of the moon and sun causes the earth's tides. The greatest tides are called 'spring' tides which occur when the earth, moon and sun are aligned. The moon has the greatest effect on our tides because of its proximity.
A neap tide is a tide with the least difference between consecutive and low and high tides. A spring tides are combined forces which produce a tide with a greatest difference between consecutive low and high tides. They occur because the moons gravitational pull is pulling it.
When the moon is aligned to the sun and the earth: MOON --> EARTH --> SUN
They are called neap tides.
All of them. Low tides occur just about twice a day in most places.
they are both tides
http://www.pol.ac.uk/home/insight/tideinfo.html Proudman Oceanic Laboratory states that spring tides and neap tides occur twice a month. Interestingly, they occur on the earth between 36 to 48 hours after the full moon and the new moon when the earth, moon and sun are aligned. http://www.waterencyclopedia.com/St-Ts/Tides.html A good illustration of the position of the earth, sun and moon during neap tides and spring tides makes it clear why there are two of each per month. From the Water encyclopedia. http://svs.gsfc.nasa.gov/stories/topex/index.html Shows how the topography of the ocean floor can dissipate energy and causes the tides to be lower than anticipated.
because god wants it to
A spring tide occurs at the new moon or the full moon when the Sun, Moon and Earth are aligned thereby generating the greatest gravitational pull on the tides.Spring tides occur during either a full or new moon. At these times, the tides are strong due to the gravitational force of the moon and sun
full moon
No, they occur every twice a month; every full moon and every new moon.
Very high tides, known as King Tides. To quote Wikipedia: "The king tides occur when the earth, moon and sun are aligned at perigee and perihelion, resulting in the largest tidal range seen over the course of a year."