Science P6 MBS 2018 SA1 Q03

Sam made some observations of how the leaves of some plants adapt to their environment. He recorded his observations in the table shown below.

Plant	Adaptation	Function
X	air spaces in leaves	helps the plant to float
Y	waxy leaves	prevents water from collecting on the leaves
Z	needle-like leaves	reduce water loss

Based on the information given above, which of the following correctly describes the reason for the adaptation of leaves X, Y and Z?