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PIT_PIT [208]
3 years ago
8

Which of the following is a secondary source?

Biology
1 answer:
telo118 [61]3 years ago
3 0
I believe the answer is a government report. 
Hope that helps! :)
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What volume would a 20.0 kilogram sample have if it’s density is known to be 19.3 g/cm^3 does it sink or float? Is this a solid
balandron [24]

Answer:

it is a solid and it will sink the volume is 39.3 kilograms

Explanation:

4 0
3 years ago
MY GOD HURRY UP PLEASE I BEEN WAITING ALL DAY FOR HELP!
7nadin3 [17]

Answer:

Question 1 answer

Plate tectonic began in 1915 when Alfred Wegener proposed his theory which was continental drift. Usually scientists use waves to study the difference of the layers of earth. They use seismic waves. seismic waves are generated by earthquakes or nuclear-test explosions.

Those 3 pieces would be the fit of the continents, paleoclimate indicators, and geologic features. The rock formations of eastern North America, Northwestern Africa and Western Europe were found later to have a common origin. They were found to overlap.

Question 2 answer

Location 1: The ocean waves atlantic

Location 2: Platforms

Location 3: Sea stacks pacific

Question 3 answer

(This is in the ss)

I dont know the other ones sorry

7 0
2 years ago
What does the R stand for when attached to a molecule?
ehidna [41]

Answer:

R is an abbreviation for radical, when the term radical applied to a portion of a complete molecule (not necessarily a free radical), such as a methyl group.

6 0
3 years ago
The action of a buffer to maintain ph within normal limits involves __________.
lozanna [386]
A buffer is a solution encompassing a weak acid and its conjugate base in alike amounts. This combination reduces the pH change upon addition of strong acid or base by converting H1+ (or OH1-) to weaker acids or bases. This primarily consist of compounds that stabilize the pH of a solution by removing or replacing hydrogen ions. Also, substances that resist change in pH. 
3 0
4 years ago
9. a) How does hydrogen bonding help the transport of water in plants?
grigory [225]

Answer:

Water has a high Cohesion because of Hydrogen bonding. This is important as transport of water in the Xylem in plants relies on water being pulled up. Cohesion also gives the water a high surface tension, allowing small organisms, such as Pond Skaters, to walk along it.

Explanation:

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

Plants obtain the hydrogen they need from water molecules. Don't try to feed your plant hydrogen gas -- your plant wouldn't know what to do with it if you did. As long as they have water, plants can readily obtain all the hydrogen they need. :)

6 0
3 years ago
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