How can humans have a positive impact on air quality? >>> ANS::by using public transportation instead of driving a car
by moving to a large city, where air quality is better
by removing vegetation such as trees and shrubs

Mga halaman/punong ornamental na di namumulaklak

What part of the ear is names after tools, such as the hammer and the anvil?

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction