Which of the following is the correct Linnaean classification system order?
MULTIPLE CHOICE
A. Species → Family → Kingdom → Phylum → Class
→ Genus → Order
B. Class → Species → Family → Genus → Phylum →
Order → Kingdom
C. Phylum → Order → Kingdom → Class → Genus →
Species → Family
D. Kingdom → Phylum → Class → Order → Family →
Genus → Species
No

Which of these is a disadvantage of hydrogen fuel cells? a. engines that use hydrogen fuel are more efficient than gasoline-powered engines. b. the only emission produced by hydrogen fuel cells is water. c. hydrogen fuel is continually available and useful for heating. d. hydrogen fuel is often purified in a process that emits lots of greenhouse gases.