Answer: Positive externality
Explanation: Positive externality is the concept in which the service produced and the consumption of that service will provide benefit a third party who is not a part of the process.
While producing fertilizer , it is providing a unintentional benefit to the community surrounding(third party) by keeping the insects away through exerting gases so that they don't cause insect bites or other problem.
Other options are incorrect because negative externalities are negative consequences face by the third party in a process. Comparative externality is related with comparison and pecuniary externality is increment or decrement in market price of service by action of economic actor .
A is the correct answer.
The Battle of Chickamagua was the second bloodiest battle of the Civil War behind the Battle of Gettysburg.
The Confederate army defeated the Union with the following casualty count:
Union Casualties: 16,170 (1,657 killed)
Confederate Casualties: 18,454 (2,312 killed)
I think the answer is the second one
Are you serious? Is this a 'trick' question? You don't know that silica has density greater than water? Trick Question....
I'm beginning to 'wonder' about this site. I'll bet you're stood-up by an ABC-Agency.
Who would ask kids this kind of question?
Info-miner's or 'profilers'!