Answer:
A. a replication of studies
Explanation:
A researcher performs a previous study following the same procedures to see if she will get the same results.This is an example of a replication of studies.
Carrying out a previous research under the same exact conditions to see if the results will be the same is simply a replication of study. Replication of studies is necessary for the validation of results gotten from the previous research.
Answer: Passive solar technology
Explanation:
Passive solar technology is the method of using materials to attract sunlight for warmth. Solar energy is the energy that comes from the sun. To store this energy gotten from the sun you'll need some elements to transfer this energy then store them. According to the passage the individual used a black material (black material is used for conveying and storing heat, it's one of the best form for doing so), the black material and the water helps warm the water needed for the individual after his hiking which actually worked.
I don't know what the original empire was, so I don't know what the "others" are, but here some examples:
- the Aztec empire. Contribution: the cultivation of cocoa plant
-the Roman Empire. Contribution: roads, aqueducts, spread of latin script
- Islamic Empire. Contribution: maintenance of ancient Greek knowledge in their libraries and contributions to medical knowledge
Answer:
Which layer of the earth are the same age
Explanation:
RELATIVE AGE. The Law of Superposition states that in a layered, depositional sequence (such as a series of sedimentary beds or lava flows), the material on which any layer is deposited is older than the layer itself. Thus, the layers are successively younger, going from bottom to top.
