during the industrial expansion in the late 1800s
Environmental pollution began to emerge as a significant problem in the US around the mid-20th century, particularly in the 1960s and 1970s. This period marked a heightened awareness of the negative impacts of pollution on human health and the environment, leading to the establishment of environmental protection laws and agencies such as the EPA.
Air pollution and acid rain are environmental issues. They begin with the letter a.
1900
gradual but definate
Pollution is objectionable. Pollution is obscene.
Mesopotamia 4000 to 3500 BC.
The time it takes for a monarch butterfly to emerge from its chrysalis can vary, but it typically takes about 10 days to two weeks. During this time, the caterpillar undergoes metamorphosis, transforming into a butterfly. Once the process is complete, the newly formed monarch will emerge, expand its wings, and begin its life as an adult butterfly. Environmental factors, such as temperature and humidity, can influence the exact timing.
A chrysalis typically shakes for a few minutes, usually during the final stages of metamorphosis when the butterfly is preparing to emerge. This shaking helps to loosen the chrysalis and facilitate the butterfly's escape. The duration and intensity of the shaking can vary depending on the species and environmental conditions. Once the shaking is complete, the butterfly will begin to emerge from the chrysalis.
start commence, proceed, initiate, embark on, instigate, institute, emerge
happen, start, begin, follow, result, develop, emerge, occur
The two party system began to emerge during the ratification of the constitution in 1824, shortly before the Civil War.
The two party system began to emerge during the ratification of the constitution in 1824, shortly before the Civil War.