I think its true because the tornado is caused by the clouds.
Answer: Mesopotamia, china, indus River Valley, the mesoamerican empires..... in this case, the two rivers are the tigris and Euphrates. Mesopotamia. The name Mesopotamia was given to the middle eastern civilizations that existed between the Euphrates and Tigris Rivers. :)
Answer:
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Founded and led by National Geographic Explorer-in-Residence Dr. Enric Sala, Pristine Seas is an exploration, research, and media project aimed at supporting the United Nations' target of 10 percent of the ocean protected by 2020. ... Since its inception, Pristine Seas has carried out expeditions in 23 places.
Explanation:
Answer:

Explanation:
Mechanical advantage is given by the ratio of output force by input force.
= Output force = 
= Input force = 
So,

The mechanical advantage of the pulley's is
.
Food webs are more complex than food chain