In today's economic activity, carbon-based energy sources come with certain costs for business and consumers, some of which include, but are not limited to, co₂ emissions, air pollution, and global warming. these costs are described

Yes, all what is man made has a cost associated to it.

Explanation:

As carbon is an energy source comes from certain business activities some of which are not limited to CO2 emission, air pollution, and global warming. It impacts the business and health care hundreds and millions of dollars each year as the combustion gases concentrate around the city and thus many countries have put up food penalties. An increase in the cost of electricity generation and heat produced due to the plants have a dangerous impact on the well being of the planet. The carbon tax is an indirect form of tax that is administered to countries that don't keep up the standard policies of the united nations. The social costs associated with carbon is like border tax adjustment. Unite state and other nations being a large industrialized nation like china have themselves regulated this trading of carbon so as to offset the emission rates and keep in close check with that of global warming.

Cultural convergence is the theory that two cultures will be more and more like each other a very notable example of this is around the u.s.-mexico border, where 

Since wxyz is 4, halfof that would be 2.