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rusak2 [61]
3 years ago
7

These jars show the set-up from Francesco Redi's experiment with meat and maggots. After a few days of sitting out, the covered

jar did not have any maggots in it. What is the most likely explanation for this? A. The maggots left the jar before it was covered. B. The meat in the covered jar was not the type of meat that the flies liked. C. The flies could not get into the jar to lay their eggs. D. The covered jar was not left out long enough to turn into maggots.
Biology
1 answer:
padilas [110]3 years ago
6 0
C. the flies could not get into the jar to lay their eggs
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water stress is used to describe a scenario in which, in a given region, the demand for water is greater than its availability and capacity for renewal. In this type of situation the amount of water available is insufficient to meet the needs of use. A country is considered to be under water stress when water availability is less than 1,700 m 3 per capita per year, according to the UN.

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Water stress can cause water shortages in a number of places. Photo: T.Dallas / Shutterstock.com

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Population growth and economic development are the main factors contributing to the increase in water consumption in the world. With this, the amount of water consumed per capita grows more and more, but the amount of this resource on the planet remains unchanged. Most of this economic growth occurs in developing regions, such as Africa and Asia, which already tend to lack water availability. In the case of developed countries, the problem is different: improving living conditions means that per capita water use increases.

With regard to water availability, Brazil is a privileged country, presenting approximately 12% of the world's fresh water. However the distribution of this resource is extremely unequal, with about 68% concentrated in the North region. The Southeast region has only 6% of the country's freshwater reserve. In other words, the most populous regions have the lowest water availability. The Northeast region suffers the most from water stress, since it is the most arid in the country, passing through long periods of drought .

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References:

Bates, BC et al., Climate Change and Water. Technical Paper of the Intergovernmental Panel on Climate Change. Geneva: IPCC Secretariat, 2008. 224 p.

Mello, MCS 2010. The water crisis in the world scenario: analysis of its causes, consequences and proposition of solutions that make possible the reversion of this situation. Postgraduate Monograph, Instituto A Vez do Mestre, Cândido Mendes University. Rio de Janeiro.

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