C because cloud is part of nature and they are always moving and growing so it changes, nature is always changing
This website has information on forms of Human observation to be pretty broad. It doesn't have anything specific with Bolivian villagers or there looms.
http://www.psychologydiscussion.net/behaviour/7-methods-of-studying-human-behaviour/540
The answer is b; capable of being felt or touched
I’m pretty sure that it’s the second one. I definitely know that it’s not the last one
