Maria took a walk to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero? a. 0 hrs b. it was never 0 c. at 0 hrs then 2hrs d. at 0.75 to 1.25 hr

In all living cells dna controls cellular activities by

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering