How many significant figures are present in the following number:
0.0001790497

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Chemistry worksheet - i am not sure what they are asking for exactly?

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.