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marta [7]
2 years ago
15

Are rocks hard i dont know if rocks are hard

Biology
1 answer:
Ray Of Light [21]2 years ago
8 0
It is extremely useful for geologists, because most specimens of a given mineral are very close to the same hardness. ... So, we can conclude that not all the rocks are hard, and the hardness of rocks depends on how the atoms of the rock's minerals are bound to each other and how they are arranged.
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What do we mean when we say that there is a "Consilience of Evidence" supporting a theory?
Gnoma [55]

The correct answer is C) That scientists who have worked on the theory have independently and repeatedly come to the same conclusions over time.

Explanation:

In science, the term "consilience of evidence" is used when the evidence of a hypothesis or theory is consistent especially evidence from independent scientists or sources. This often implies the theory has been tested many times and by different experts and even using different methods but the results are always the same. This consilience of evidence is essential to declare a theory as valid and concluding. In this context, the option that describes the meaning of this term is C.

4 0
3 years ago
A psychology instructor is lecturing on the processes and mechanisms of messages in the nervous system. She has come to the part
trapecia [35]

Answer:

She should use the example of "the wave" in stadiums to illustrate the idea of a nerve impulse.

Explanation:

"The wave" in a sport stadium is a good example to explain how a nerve impulse works because it shows how an action potential travels from one point to its destination making changes in the membrane potential that would be the equivalent of people standing up and sitting down to allow the next row to do the same to reach its final destination.

7 0
3 years ago
What advantages did using the elodea stalk have over using its leaf or leaves?
stepladder [879]
In an experiment, using the elodea stalk, you are able to expose more underlying tissue and the process can be executed more quickly and it's easy to replicate the natural position for a more realistic result.
hope this helps
8 0
3 years ago
How does the introduction of invasive species such as the brown tree snake upset the stability of the legal system
Assoli18 [71]

Answer:

Invasive species compete for the same natural resources such as food and water which the native species also need for survival.

Explanation:

Invasive species upset the stability of the ecosystem because the prey in their new environment does not have the needed defense against them. They also upset the food chain, consume so much, and overpopulate in the new territory thus causing the extinction of the native species.

The introduction of brown tree snakes in Guam disrupted the ecological system as their population increased rapidly because their preys in this new environment lacked the ability to defend themselves against the brown tree snakes. For this reason, more than twelve native birds in the Guam Islands went into extinction. They also consumed the natural resources needed for the survival of the native species.

3 0
3 years ago
Similarities between water borne diseases and water washed diseases
kaheart [24]

Answer:

Explanation:

Water washed disease are diseased that occur due to lack of water for proper personal use.

Often common in areas with predominantly poor people.

Water borne diseases are disease that are are transmitted by pathogens and micro organisms in water. Bacteria and protozoan are major carriers of water borne disease. When exposes to contaminated water one could get the disease from there.

Both water borne and water washed diseased are characterized by pathogens and micro organism.

They both result in serious medical condition that requires treatment via drug administration.

Lack of proper hygiene can result in both water washed and water borne disease.

7 0
2 years ago
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