What is the purpose of using dry ice to cool the cloud chamber

What is the main reason why some developing countries fear the increase the free trade policies around the world?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

What if it is did darwin used to support his theory of evolution