Most of the angular momentum in the solar system is
A) in the Sun.
B) in its planets.
C) about equally divided in the Sun and its planets.
B
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Locavores are people who
A) always eat the same food in the same location. B) eat locally grown food to reduce waste and refrigeration and transportation costs. C) identify themselves as carnivores and eat only meat. D) seek non-traditional forms of protein such as insects, marine invertebrates, and fungi.
In 1950 the global infant mortality was ________ times higher than it is today
A) 1/2 B) 4 C) 10 D) 2 E) 1
According to the World Health Organization (WHO), between 1970 and 2015, the percentages of all deaths worldwide resulting from infectious diseases ____.
A. increased and then leveled off B. increased from 5% to 16% C. increased from 15% to 35% D. dropped from 35% to 16% E. dropped from 15% to 5%
A group of concerned citizens was worried that their local water supply might be contaminated with naturally occurring arsenic. They decided to purchase a home arsenic monitoring kit and tested well water in their local area. After analyzing the data (shown below), the citizens wrote a letter to the editor of a local newspaper arguing that their data proved that the water supply is contaminated. They demanded immediate government action to address the problem. The local water board again tested the wells using their official water testing instruments and found average concentrations of 8.1 +/- 0.2 micrograms per liter. Assume the water board's reported measurements are the accepted value. The maximum permitted level of arsenic in water supplies is 10 micro-grams per liter. src="https://sciemce.com/media/4/ppg__1020817191133__f1q510g1.jpg" alt="" style="vertical-align: 0.0px;" height="119" width="470" /> Which of the earth-system scientist's roles is best illustrated by this paragraph?
A. Informing society
B. Use of earth resources
C. Alerting the public of natural hazards
D. Health of the environment