Question

1 multiple choice 20 points which human innovation most directly contributed to a sharp and sustained decrease in global human mortality rates? the invention of the internet and global communication networks. the development of antibiotics and widespread vaccine programs. the domestication of dogs for hunting purposes. the early use of wind power for grinding grain. 2 multiple choice 20 points explain the ecological trade - off inherent in the green revolution. it reduced biodiversity in exchange for less total water consumption. it promoted sustainable farming methods in exchange for slower population growth. it increased food production for a growing population in exchange for increased reliance on chemical fertilizers and pesticides and an overuse of freshwater resources. it stopped all deforestation by focusing only on existing farmlands, but it caused a global economic recession. 3 multiple choice 20 points a citizen wants to reduce household waste by buying products with minimal or biodegradable packaging. explain how a legal/political demand could directly support this personal sustainability goal. social media influencers start promoting zero - waste lifestyles to their followers. the price of recycled plastic drops, making it cheaper to produce new goods from virgin plastic. retailers voluntarily stop selling any products that contain plastic packaging. the local government passes an ordinance that bans specific single - use plastic items like plastic bags or plastic straws. 4 multiple choice 20 points which factor best explains why developed nations generally have higher health standards than developing nations? they have greater access to medical technology and healthcare infrastructure. they have larger populations living in rural areas. they experience more frequent natural disasters. they depend more on agriculture for economic growth. 5 multiple choice 20 points analyze the long - term ecological effect of the agricultural revolutions shift to monoculture farming. which option best argues for its most critical, irreversible consequence on global ecosystems? it completely removes all carbon dioxide from the atmosphere, halting the greenhouse effect. it requires the use of heavy machinery, increasing soil compaction. it leads to the permanent loss of genetic diversity within key food crops, making the global food supply highly vulnerable to new pests and diseases. it increases the albedo (reflectivity) of earths surface, causing a measurable decrease in global temperatures over centuries.

Explanation:

Question 1

Antibiotics treat bacterial infections, and vaccines prevent diseases. Both have directly reduced mortality by combating life - threatening illnesses. The internet (communication), dog domestication (hunting), and wind power (grain grinding) do not directly impact mortality rates as significantly as medical advancements.

The Green Revolution aimed to increase food production. This was achieved through the use of chemical fertilizers (which can pollute water and soil) and pesticides (harmful to non - target species). Also, increased irrigation (overuse of freshwater) was often part of the process. Biodiversity was reduced as monocultures replaced diverse ecosystems.

A local government ordinance (a legal/political action) directly bans single - use plastics. Social media influencers (social), price drops (economic), and retailers' voluntary actions (not legal/political) do not represent a legal/political demand.

Answer:

The development of antibiotics and widespread vaccine programs.

Question 2