The Aztec culture were the first to develop the concept of zero.
Environmental goods are typically non-market goods, including clean air, clean water, landscape, green transport infrastructure (footpaths, cycleways, greenways, etc.), public parks, urban parks, rivers, mountains, forests, and beaches. A regulating service is the benefit provided by ecosystem processes that moderate natural phenomena. Regulating services include pollination, decomposition, water purification, erosion and flood control, and carbon storage and climate regulation
Well the news informs people of what going out in the world. This can help warn people in the event of a war.
I think it is C but I am not sure