The main difference between turbojets and rocket engines is the fact that
a. turbojets are not dependent on oxygen from the air.
b. rocket engines need oxygen from the air.
c. turbojets carry their own supply of oxygen as oxidizers.
d. rocket engines are not dependent on oxygen from the air.

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.