Question

in cactus, the leaves are reduced to spines. why?​

Answer 1

Answer:

This happens to prevent the plant from losing water from transpiration.

Hope my answer helps.

Answer 2

Answer: HEY MATE HERE IS YOUR ANSWER:)

MOST SPECIES OF CACTI HAVE LOST TRUE LEAVES , RETAINING ONLY SPINES, WHICHARE HIGHLY MODIFIED LEAVES. SPINES HELP PREVENT WATER LOSS BY REDUCING AIRFLOW  CLOSE TO THE CACTUS AND PROVIDING SOME SHADE.

Explanation:

I HOPE IT HELPS YOU...

IF MY ANSWER IS CORRECT PLS MARK ME AS BRAINLIEST ^_^