Depositional environments 51 exercise 4 3. rocks of the cedar mountain formation were part most likely deposited in which of the sedimen- tary environments listed in table 4.1? explain your answer cedar mountain formation, early cretaceous, san rafael swell, utah (figure 4.9) 1. what two sedimentary rock types predominate in this formation? 4. explain why dinosaur skeletons collected from 2. how would you describe the shape of the sand- stone bodies shown in the satellite view of the area (figure 4.9c)? shales at locality 1 on figure 4.9a are more likely to be complete than dinosaur remains collected from sandstones at locality 2 on figure 4.9a.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

the answer is d. 74.02

the answer is barium and copper bromide