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vodka [1.7K]
3 years ago
5

What is the S.I unit of speed , time​

Biology
2 answers:
lara [203]3 years ago
7 0

Answer:

Second!

Explanation:

speed and velocity are both measured using the same units.The S.I unit of distance and displacement is the meter. The S.I unit of time is the second. The S.I unit of speed and velocity is the ratio of two-the meter per second!

I hope it's helpful!

Katyanochek1 [597]3 years ago
6 0

Answer:

metre per second

Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.

Explanation:

please mark me as brainliest

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Oxygen is carried from your lungs through your blood to all your cells by a molecule called
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Answer:

B.Hemogoblin

Explanation:

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List the ocean regions that have the highest sea surface salinity
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<u>Answer</u>:

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3 years ago
How did humanity start?
svetoff [14.1K]




Human evolution

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Most scientists currently recognize some 15 to 20 different species of early humans. Scientists do not all agree, however, about how these species are related or which ones simply died out. Many early human species -- certainly the majority of them – left no living descendants. Scientists also debate over how to identify and classify particular species of early humans, and about what factors influenced the evolution and extinction of each species.
Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago. They entered Europe somewhat later, between 1.5 million and 1 million years. Species of modern humans populated many parts of the world much later. For instance, people first came to Australia probably within the past 60,000 years and to the Americas within the past 30,000 years or so. The beginnings of agriculture and the rise of the first civilizations occurred within the past 12,000 years.
Hope this helps:)

3 0
3 years ago
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tia_tia [17]
<span>http://www.geosociety.org/science/timescale/timescl.htm
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