Which of the following is an example of want versus a need

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

Can someone me with 6 to 10 plz this is for masteries test.

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11