Answer:
Different types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence made scientists take a second look at Wegener's hypothesis of continental drift.
Explanation:
Answer:
By comparing the observed and modeled patterns, scientists can positively identify "human fingerprints” and attribute a proportion of observed warming to human activities. These fingerprints are found in a diverse range of records from the atmosphere, the ocean, and Earth's surface
d) a vascular plant that uses pollen to produce seeds that are not enclosed in protective fruits
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Answer:
a) decreased soil nitrogen due to the harvesting of crops
Explanation:
I looked at my notes and made a 100 on the quiz.
Answer: In most chemical reactions, bonds are both broken and made. Energy is absorbed when bonds are broken, and released when bonds are made. The sum total of the released (negative) energy and absorbed (positive) energy determines whether the overall reaction is exothermic or endothermic.
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