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.

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?