Two c atoms form a double bond. each c is bound to two h atoms. which statement is true?
a_the bonds orient like tripods or pyramids.
b_all the atoms lie in a line.
c_the bonds orient in a tetrahedral fashion.
d_all the atoms lie in a plane.
e_the groups rotate around the c=c bond.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

What is the ecological role of food chains and food webs

How do temperature and salinity affect deepwater currents? they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.