(Question)
Q: What type of hydrocarbon is coal? Choices: - mineral - gas - liqued - solid A:
(Answer)
solid

(Question)
Q: Lattice energy cannot be measured directly. what is its calculation based on? Choices: - chemical reactions - change in temperature - microscopic inspection - measured energy changes A:
(Answer)
measured energy changes

(Question)
Q: What makes the realized niche of chthamalus much smaller than its fundamental niche? Choices: - instantaneous competition - asexual competition - microscopic competition - interspecific competition A:
(Answer)
interspecific competition