1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masya89 [10]
3 years ago
9

Naturally occurring, solid substances that have a crystalline structure and a defined chemical composition are called

Social Studies
1 answer:
Yanka [14]3 years ago
8 0

The correct answer is B.

A mineral is defined as a naturally occurring substance that has a definite chemical composition  and crystal structure.

In order for a substance to be called a mineral, it must have all the four characters described in the definition.

- a mineral is always a solid and has a definite shape and volume.

- most minerals are made of two or more elements chemically combined to form a compound. It may also be made of a single element e.g.  gold, copper or sulphur.

-  all minerals have a characteristic crystal structure.

- minerals are grouped according to their chemical composition or makeup



You might be interested in
Need answer fast anyone plzzz
UkoKoshka [18]

Answer:

The blue arrows represent the Americans

5 0
2 years ago
Read 2 more answers
Which demonstration illustrated the basic process of retrieval from long-term memory?
Irina18 [472]

Answer:

Everyone generated either one or three associated words to each to be remembered the word.  

Explanation:

Long term memory retrieval process is a process that takes place differently. Many things are there that affect the retrieval process of memory. The memory effects by what you get the information past a long time and what information you are getting in the meantime.

Many other variables are there which affects the process of memory retrieval. There are spacing effects and recency effects that affect the pattern of memory retrieval. But the testing effect increases the memory retrieval.

3 0
2 years ago
What is the relationship between the US Constitution and the different levels of the US government?
Evgen [1.6K]
Legislature: makes laws
Executive: right to veto any laws.
Judicial: judges and court makes sure laws are constitutional
4 0
3 years ago
What's the part of the brain that makes us human?
olasank [31]
The brain area pinpointed is known to be intimately involved in some of the most advanced planning and decision-making processes that we think of as being especially human.

'We tend to think that being able to plan into the future, be flexible in our approach and learn from others are things that are particularly impressive about humans. We've identified an area of the brain that appears to be uniquely human and is likely to have something to do with these cognitive powers,' says senior researcher Professor Matthew Rushworth of Oxford University's Department of Experimental Psychology.

MRI imaging of 25 adult volunteers was used to identify key components in the ventrolateral frontal cortex area of the human brain, and how these components were connected up with other brain areas. The results were then compared to equivalent MRI data from 25 macaque monkeys.

This ventrolateral frontal cortex area of the brain is involved in many of the highest aspects of cognition and language, and is only present in humans and other primates. Some parts are implicated in psychiatric conditions like ADHD, drug addiction or compulsive behaviour disorders. Language is affected when other parts are damaged after stroke or neurodegenerative disease. A better understanding of the neural connections and networks involved should help the understanding of changes in the brain that go along with these conditions.

The Oxford University researchers report their findings in the science journal Neuron.

Professor Rushworth explains: 'The brain is a mosaic of interlinked areas. We wanted to look at this very important region of the frontal part of the brain and see how many tiles there are and where they are placed.

'We also looked at the connections of each tile -- how they are wired up to the rest of the brain -- as it is these connections that determine the information that can reach that component part and the influence that part can have on other brain regions.'

From the MRI data, the researchers were able to divide the human ventrolateral frontal cortex into 12 areas that were consistent across all the individuals.
4 0
2 years ago
A psychologist specializing in marriage counseling claims that, among all married couples, the proportion for whom her communica
Sedbober [7]

At the level of 0.05% significance we can not reject the psychologist's claim. His claim is supported.

Explanation:

When a researcher undertakes a project to do research firstly he takes some random samples. Sample is definite a small group of numbers assume to represent the whole population. Suppose a researcher wants to do research on married couples to find the trend of divorce among them. For that reason he will randomly choose some of the couples and will draw conclusions that inter personal communication reduce the chances of divorce.

Now to establish this experiment as a fact he needs to go through a test of level of significance. Where he will get the result that his statement is established or rejected.

5 0
3 years ago
Other questions:
  • How did the Treaty of Versailles sow the seeds of instability in Europe
    11·1 answer
  • Which best characterizes Russian in the early 1900
    7·2 answers
  • If both the president and the vice president are unable to fulfill their duties, who takes over as president?
    15·1 answer
  • Which European nation was responsible for colonizing most of Central and South America
    7·1 answer
  • A student at the top of a building of height h throws ball A straight upward with speed v0 and throws ball B straight downward w
    7·1 answer
  • The American Revolution, the French Revolution, and the Industrial Revolution all led to the atmosphere that encouraged Romantic
    11·2 answers
  • whats your favoirite animal? (free points) brainlyest to first person to respond with answer and explanation!
    13·1 answer
  • Which statement best describes the role of noble women?
    12·2 answers
  • A 55 kg student was riding his skateboard to school. He traveled 200 meters in 40 seconds. What was the student’s average speed
    13·1 answer
  • What was the number one fear of the founding fathers when they were maiking their government
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!