The city of Los Angeles released 96 million "shade balls" into the Los Angeles Reservoir. These will serve to shield the water from the sun's heat in order to reduce evaporation and prevent algal and bacterial growth so no toxic substances are produced in the water. The balls reduce evaporation by 85%-90% so will save a lot of water yearly.
The first answer: "Mexico is the largest foreign supplier of marijuana and methamphetamine to the US market
Answer:
mortality rate, measure of human infant deaths in a group younger than one year of age. It is an important indicator of the overall physical health of a community. ... High infant mortality rates are generally indicative of unmet human health needs in sanitation, medical care, nutrition, and education.
Answer:
One of the best-preserved records of these events is in the bottom of the Grand Canyon—in a package of sedimentary strata known as the Tonto Group.
Explanation:
I believe the correct answer to your question is option C. It is a process by which greenhouse gases allow the sun’s light to penetrate the atmosphere but stop the heat from escaping.
The greenhouse effect is the natural heating of the Earth's surface.
Hope I could help! :)
