How Pennsylvania Auto Insurance Rates Are Determined. Just as it is in other states, in Pennsylvania, auto insurance is more expensive when the company providing your policy views you situation as more of a risk.
1 All trees, no matter how tall, have shallow roots. They go out, not down. Even a big tree's roots rarely go further down than 6.5ft (2m) and most are in the first 23.5in (60cm). 2 They rarely find their way down the water table but rely on rain water. 3 Roots anchor the tree and draw in moisture.
1 Giant Sequoias can survive in less than 3 feet (1 meter) of soil by spreading their roots far from the tree, up to 300 feet (100 meters). 2  That such mammoth trees have such shallow root depth is astonishing.