1. PART A: Which of the following best describes the author's main claim in the text?
O A Water scarcity is not something that humans have
any control over, as it is caused by natural events.
OB Humans can reverse the damage they have inflicted
on the Earth's water supplies if they reduce their
pollution output.
C Widespread water scarcity threatens the right that
all humans should have to access clean drinking
water, as it is essential to live.
OD Water scarcity is an issue primarily caused by
humans that needs to be addressed by humans.

Mass of water is smething that you froma drug test or sum girl ya

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

Aconductor easily transfer heat