It is b because it just is
Ground my dude! wanna know how I know! I checked the other answers on the other one :)
Explanation:
The non living things in its environment is called a " matrix,"
A matrix is what supports a non living thing to reproduce, triple its existence & reproduce in mass quantities, like soil bacteria, and others..
Barometer is used to measure atmospheric pressure :)
Roots are built to absorb more and are placed right in their environment that they will be absorbing nutrients. Unlike leaves and stems, roots are not exposed to the daily elements in the outdoors and therefore don’t need the protection and filter that the waxy cuticle provides.
I believe this is the difference..
I hope this helps! :)
