Which piece of information do you need to determine whether a molecule is an alkyne or an alkene?
A. The number of C-H bonds in the molecule
B. The type of C-H bonds in the molecule
C. The type of C-C bonds in the molecule
D. The number of C-C bonds in the molecule

Drag each tile to the correct box arrange the layers not order from oldest to youngest

Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature