Science question worth 20 points
using hooke's law find the elastic constant of a spring that stretches 2cm when a 4 newton force is applied to it.
a. 8 n/cm
b. 4 n/cm
c. 1/2 n/cm
d. 2 n/cm

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

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

Do plant cells perform cellular respiration?