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AnnZ [28]
3 years ago
6

This is 7th grade science plz help

Biology
1 answer:
Darya [45]3 years ago
4 0
The best estimate for Earth's age is based on radiometric dating of fragments from the Canyon Diablo iron meteorite. From the fragments, scientist calculated the relative abundances of elements that formed as radioactive uranium decayed over billions of years. 
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It should be cell wall
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describe the three ways in which running water breaks up bedrock and three ways water transport sediment
Scrat [10]
Sediments are loose Earth<span> materials such as </span>sand<span> that accumulate on the land surface, in river and </span>lake<span> beds, and on the </span>ocean<span> floor. Sediments form by </span>weathering<span> of rock. They then erode from the site of weathering and are transported by </span>wind<span>, </span>water<span>, </span>ice<span>, and </span>mass wasting<span>, all operating under the influence of gravity. Eventually sediment settles out and accumulates after transport; this process is known as deposition. Sedimentation is a general term for the processes of </span>erosion, transport, and deposition. Sedimentology is the study of sediments and sedimentation.<span>
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3 years ago
What period has the least amount of biodiversity
meriva

Answer:

Permian has the last amount of biodiversity since the period was covered with lava and ashes

8 0
3 years ago
I would like to know that there are a lot more people with this app
hammer [34]
Do u mean- on brainly?

I'm pretty sure there are about 13million who actually use brainly so

if that's the right answer u were looking for then there u go lol
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3 years ago
Which human activity increases beach erosion
schepotkina [342]
Waves caused by fast moving motor boats can increase beach erosion...hope this helps!
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