7. The pioneer species in Xerarch and Hydrarch succession are respectively
a) Lichens and rooted hydrophytes
b) Lichens and Phytoplanktons
c) Phytoplanktons and Lichens
d) Lichens and Sedges
a) Lichens and rooted hydrophytes
b) Lichens and Phytoplanktons
c) Phytoplanktons and Lichens
d) Lichens and Sedges