When eisenhower was planning d-day he had consider how the weather might impact the invasion. at the time, meteorologists had fewer tools than they do today. how would the existence of satellites have the meteorologists that eisenhower consulted?

iron and sleel

make siroeel

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.