Are echinoderms autotrophic? how do you know?.

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

This is collection of data made by comparing objects in standard units. in science, the units are metric.