The answer is d according to study soup
One reasonable plan would be to wear a face mask or surgical
mask. Take note that your surgical mask contains two sides – the white side and the
blue side. Since the main purpose of your mask usage is to prevent yourself
from inhaling too much bad air, the blue side of the mask should be the one
touching your skin. This is because the white side of your mask helps you
prevent from coming in contact with toxins that may come from the smog.
Scissors change the magnitude or direction of a force without any motor.
The respiratory system that allows for Gas Exchange happens between Alveolar Spaces and Capillaries
Hydrologists measure the properties of bodies of water. For example, volume and stream flow.
