The key role of decomposers in an ecosystem is to make available to plants.
a
energy
b
proteins
c
nutrients
d
carbohydrates

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )

is this for the e2020 class

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate