A large volcanic eruption can produce a cloud of ash that can impact the world's climate for some time. A cloud of ash that bloc
ked out the sun for four months would MOST LIKELY have which of these effects? A) higher temperatures on Earth and increased rates of photosynthesis
B) large amounts of precipitation and flooding of coastal areas
C) lower temperatures and slower rates of plant growth
D) high rates of extinction among reptiles and amphibians
around 55 percent of the world's population is thought to be living in an urban area or city, with that figure set to rise to 68 percent over the coming decades, according to the UN.
