6 is the answer to this
hope it helps
The cell membrane is said to be selectively permeable is because it allows a select few things to go through while stopping the passage of other stuff.
Because it's partially permeable membrane so it won't let anything get inside the leaf so by this cuticle the leaf is protected not to let any foreign substances in and preventing loss of water
Answer: core
Explanation:
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
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