Answer:
Sediments are used to provide the proxies to understand the environmental changes as, the sediments are formed by the activity of the weathering from the wind, glacier and the water. The different weathering agent and other transportation agent are different types of the mark over the sediments that help in the study of the past environment.
According to the World Bank and United Nations poerty threshold/borderline, that is, the minimum level of income deemed adequate in a particular country. In 2005, the World Bank came out with a figure (revised largely due to inflation) of $1.25 a day at 2005 purchasing-power parity (PPP), and in 2015 the World Bank updated the international poverty line to $1.90 a day.
Based on the presentation of the World Bank, (B) Maria earns $1.50 per day and (D) Tim earns $ 1.00 per day will be classified as poor.
2 definitions:
an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.
a celestial body orbiting the earth or another planet
