<span>Reuse water left over from cooking.</span>
3.25 I’m almost sure. Because it has a 62.5% increase on each of the lengths
The Sun's rays hit the Earth's surface nearly at right angles at the Earth's equator.
During equinox periods in March and September, the Sun's rays hit the Equator at a perpendicular angle because the Sun is in a position in the sky directly over the Earth's equator. This in turn means that the Sun's rays hit the Earth’s surface nearly at right angles
The answer is the first option "true." You could reserve minerals in till their value rises which will be more profitable for you. But, if and when technologies make it profitable to extract deposits formerly considered too expensive to remove.
Hope this helps.