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3 years ago

Deep within the jungles of Mexico and Guatemala lie most of the Mayan ruins.

Geography

1 answer:

denis23 [38]3 years ago

3 0

Answer:

Option: A. True

Explanation:

The Maya civilization covers regions that spread from northern Mexico southwards into Central America. The Maya stretched from modern-day southern Mexico through Guatemala, Honduras, and Belize. The culture is renowned for its massive pyramids, irrigation systems and agriculture, and symbols. Most of the ruins are still discover in the jungles of Mexico and Guatemala, which remain unknown since the colonial period in Mexico under the Spanish Empire. The civilization fizzled out between A.D. 800 and 1000 before the arrival of Spanish in Central America that led structures remain untouched in the jungle for centuries.

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Consider a sample of water from a stream found to have an initial DO of 10.0 mg/L. It is placed directly into a BOD bottle and i

Leokris [45]

Answer:

The BOD5 for this sample is 5 mg/L

Explanation:

The BOD5 takes into consideration the difference between the initial DO and the final DO divided by the fraction of the sample tested in a 300 mL BOD flask. The problem states that the sample was directly placed in a BOD bottle so we assume that the volume used was 300 mL of the water sample. The fraction of water is 1 (300/300).

$BOD5=\frac{DOi-DOf}{fraction}$

BOD5 = (10-5)/1

BOD 5 = 5 mg/L

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3 years ago

Which is an equation of the line with slope -4 and a y-intercept 7

yulyashka [42]

Y=1/-4+7 if your asking for slope intercept form

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3 years ago

The fossil record provides a glimpse into the evolution of life on Earth. It shows that there have been remarkable changes in th

german

Answer:

Archean Eon.
Hadean eon.
Cenozoic eon
Mesozoic eon.
Proterozoic Eon
Paleozoic eon

Explanation:

The Proterozoic Eon continued for about 2,500 to 541 mn years ago and it preceded the Archean. Consisting of the deepwater deposits and the strata, and showed a rapid continental acceleration and the occurrence of the first known glaciations also to place.

The paleozoic eon was for about 542 to 251mn years ago and it was divided into the six geological period ad they started after the breakup of the supercontinent as Pangea.

The archean eon is an eon that was for about4,000 to 2,500 mn years ago with a tectonic layer of rocks and rocks were more active than they are now. Formation of the mudstone and the volcanic sediments.

The Mesozoic era was about 252 to 66 mn years ago and it was the age of reptiles and the coniferous, as Mesozoic is the middle life and is one of the three eras of the Phanerozoic eon.

Cenozoic is a new life and is the most recent phase of the geologic eras. ad extends from about 66 mn yer ago. Known as the extinction event of the earth.

Hadean eon stared with the formation of the earth 4.6 billion years ago.

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3 years ago

5- Why do we only see one side of the moon?

prisoha [69]

Answer:

One side of the moon always faces the earth, which is called synchronous rotation. In other words, the length of time the moon rotates or revolves around its axis is the same as the length of time it takes to orbit the earth... Therefore, our moon always has a side facing the earth, which we call the near side of the moon.

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3 years ago

A desert is defined as a region in which annual rainfall is less than: 5 centimeters 10 centimeters 25 centimeters 30 centimeter

-Dominant- [34]

25 centimeters is the answer

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3 years ago

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