The correct option is c. (20 m) .
As the formula to calculate wavelength is :
wavelength = wavespeed / frequency
Yes people are trying to plant more trees and promote awareness on afforestation and some have even started making rules the 'clean air act'
I know them in Spanish
Esta formado por los 206 huesos repartidos por casi todas las partes del cuerpo. Que permiten el aparato locomotor Que pueden ser largos, cortos, planos Que forman el esqueleto y proteccion para los organos internos Que se unen en tejido oseo, y tejido cartilaginoso Que son la columna vertebral, craneo, y pelvis
Sensory nerve endings in the fingers include Meisnner's corpuscles, Pacinian corpuscles, free nerve endings, Merkel discs, and Ruffini endings.
Answer:
1.embryophyta
2.moss is a green flowerless plant that lack roots
3.found in moist shady
4.