Answer:
The decline in Japan's fertility rate has been attributed to several factors such as changing lifestyles, people marrying later in life or not marrying at all, and the economic insecurity of younger generation. Increasing life expectancy is another driving force behind the aging trend.
-(thediplomat)
Anthropogenic changes are alterations that result from human action or presence. ... Increased production of carbon dioxide and other greenhouse gases and the resulting alteration of global climate is a good example of anthropogenic change that has been slowly revealed over the past several decades.
The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.1
Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.
The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century.2 Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that the Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly ten times faster than the average rate of ice-age-recovery warming.
I believe the answer to your first one is D) Sorghum
To your second question it is A) Rwanda
The three Rs in boaters' responsibility for the environment are: Reduce, Reuse, and Recycle
Since you asked me to explain one of them, I will explain the "reuse"
Boaters have the environmental responsibility to only carry reusable items (such as plates, cups, or silverware) when they're sailing. This will prevent any form of waste from being thrown out into the water.
