Answer:
Glutamate is the primary excitatory transmitter in the central nervous system. Conversely, a major inhibitory transmitter is its derivative γ-aminobutyric acid (GABA), while another inhibitory neurotransmitter is the amino acid called glycine, which is mainly found in the spinal cord.
Explanation:
I can't read the question also is it a science ?
erosion because it is mostly done nature itself.through wind water and ice
