A plants cell wall is made of cellulose, this is chains of beta glucose molecules joined together to form fibrals which then join to form cellulose fibres. It on its own is not living but it provides a vital part of the cell so when together with the rest of the cell, the cell is alive.
I believe it’s B or D sorry I’m not 100% sure
In order for the local residents to lower the frequency of landslides in the region that experiences frequent landslides from heavy rains, they should do the following:
A. Start contour plowing on the slopes where landslides happen.
B. Plant vegetation on the slopes that experience landslides.
Group 5 contains vanadium (V), niobium (Nb), tantalum (Ta) and dubnium (Db). This group lies in the d-block of the periodic table. The group itself has not acquired a trivial name; it belongs to the broader grouping of the transition metals.