These spring<span> tides occur because the Sun and Moon's gravity tug on Earth together. Weaker, or neap, tides happen when the Sun, the Moon, and Earth form an L-shape. Good Luck! So the answer in short is spring tide.</span>
Around 1800 (plus or minus about 5 years) is when it was estimated that the world's population had reached 1 billion.
Istanbul. It's Istanbul, not Constantinople!
Deep ocean currents don't move as much XD
