How does the vacuum between the inner and outer walls of a thermos bottle limit energy loss through conduction and convection? 

the answer is d

explanation:

dan realized that his goal of going to an ivy league school if only he works hard which means basically this   to become completely aware of (something) as a fact; understand without a doubt to make (something desired or anticipated) occur to give real, definite or physical form to a plan, dream, or goal to earn (money or a profit) from a deal

whitney would be experiencing fear or unintentional terror