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timama [110]
3 years ago
10

1. What kinds of evidence can be used to show that a supercontinent once existed?

Biology
1 answer:
Fed [463]3 years ago
3 0

1. the continents seemed to be put together like a jigsaw puzzle also the evidence of tectonic plates moving in our crust

2. Continental drift was a theory that explained how continents sift position on earth's surface

3. one of the issues with the theory that geologist at the time had, was that Wegener was not a geologist. He was publishing a theory that wasn't associated with his field of science. The other issue the geologists had was based on the commonly held opinion

4. Continents move about the earth like huge ships at sea, floating on pieces of the earth's outer skin, or crust. New crust is created as melted rock pushes up from inside the planet. Old crust is destroyed as it moves toward the hot rock and melts.

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2. The mass of the nucleus is closest to A. 99% of that in the entire atom B. 1% of that in the atom C. 10–5 of that in the atom
Tanzania [10]

Answer: Option A) 99% of that in the entire atom

Explanation:

An atom consists of three subatomic particles named protons, neutrons and electrons. The protons and neutrons are found in the nucleus of the atom, while the mass of electrons is 1/1840 (negligible).

Thus, the mass of protons and neutrons in the nucleus makes 99% of the entire atom

3 0
3 years ago
Professor Tan studies water quality in streams near chemical plants. Which is a type of qualitative data that Professor Tan
vitfil [10]
It should be pH (sorry if it’s wrong)
4 0
3 years ago
Can you think of another analogy for a chemical reaction or formula? (besides cooking and baking?)
Darya [45]

Answer:

mixing chemicals together

Explanation:

eating and drinking

5 0
3 years ago
A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate br
skelet666 [1.2K]

Answer:

All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.

By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.

Explanation:

Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia

8 0
3 years ago
What element is in group 18 periodic 3
marishachu [46]

Answer:

ARGON

hope this helps

the element that is in the group 18 periodic 3 is argon

4 0
3 years ago
Read 2 more answers
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