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Answer:
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Related Questions
Which property of minerals is the least reliable for identifying minerals?
hardness
luster
streak
color
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Answer:
color.
Explanation:
Although color is the most obvious of mineral properties it is the least reliable for identification purposes. This is because the color of a mineral can be altered by slight chemical impurities within its crystal structure.
The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.
What are the properties of minerals?A mineral species is identified by two distinct characteristics: its crystal structure and chemical composition. Each mineral has a unique three-dimensional arrangement of the atoms that make up its structure. Its physical characteristics, including cleavage and hardness, are impacted by its regular geometry.
Because they are composed of many elements, minerals have unique qualities. Iron, calcium, magnesium, silicon, carbon, phosphorus, oxygen, and many more naturally occurring elements can be found in minerals. Based on how many electrons each of these native elements have, they have various qualities.
The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.
Learn more about minerals, here:
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Which of the following is not true? *
A. Canadians are some of the highest users of resources and energy in the world.
B. The average person in the world has an ecological footprint of 2.2 hectares.
C. At the present rate, the world cannot sustain its present levels of using resources and energy.
D. The amount of resources used in North America is far less than those used in poorer countries.
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Answer:
D
in poorer countries, they use much less energy resources
Answer:
I'm pretty sure it's choice D.
Explanation:
I believe it's choice D because in poorer countries, there are less resources to go around. Therefore it's near impossible to use more resources than used in North America
Biological control is used to control pests. Unfortunately there are risks involved if the biological control is a new species to the area. What are they?
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Explain how cell division is linked to cell theory.
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Based on the structures of each type, which cell do you think can perform more functions: Human cells or bacterial cells?
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Answer: Human Cells
Explanation: Humans cells are composed of eukaryote cells. Each organelle in a eukaryote has a distinct function. Because of their complex level of organization, eukaryotic cells can carry out many more functions than prokaryotic cells. To summarize it is human cells.
Please give the correct answer
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Answer:
D
Explanation:
how would I write out cm before 1 on a metric ruler
ex : 8'4 cm
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What makes elements and compounds different from mixtures? Elements and compounds-
a). have a constant composition
b). are made of gases
c). will not change when heated
d). conduct electric current
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Answer:
a). have a constant composition
Explanation:
Let's take water, a compound, as an example. Regardless of how much water you have, there will be one oxygen molecule every two hydrogen molecules. It has a constant composition. The same case is with elements. You'll have a constant amount of atoms per mole. Meanwhile, in mixtures, the composition of everything mixed together is not constant as it is not equal everytime.
Besides, the rest of the choices do not even make sense in the first place...
Explain the differences between saturated and unsaturated lipids and give examples of each.
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Answer:
The difference between saturated and unsaturated fat lies in the number of double bonds in the fatty acid chain. Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain.
Explanation:
write a mini-essay about Balanced & Unbalanced Forces
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Answer:
Forces have a magnitude (strength) and a direction. Forces can be represented as arrows with the length of the arrow representing the magnitude of the force and the head of the arrow pointing in the direction of the force. Using such arrows, the resulting force (net force) and direction can be determined.
Forces acting on an object can be balanced or unbalanced.
Balanced forces acting on an object in opposite directions and equal in strength, as shown in the arrows below, do not cause a change in the speed of a moving object.
Objects that are not moving will not start moving if acted on by balanced forces.
For example, in arm wrestling where there is no winner, the force exerted by each person is equal, but they are pushing in opposite directions. The resulting force (net force) is zero. Or, in a tug of war, if there is no movement in the rope, the two teams are exerting equal, but opposite forces that are balanced. Again, the resulting force (net force) is zero. Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving. When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.
The magnitude and direction of the net force affects the resulting motion
This combined force is exerted in the direction of the larger force
For example, if two students push on opposite sides of a box sitting on the floor, the student on the left pushes with less force (small arrow) on the box than the student on the right side of the box (long arrow).
The resulting action (net force: smaller arrow to the right of the = shows that the box will change its motion in the direction of the greater force as shown below:
Before humans ever ventured into space, we fantasized about visiting—and even living on—other planets. As technology continues to develop, it may one day be possible for humans to call planets other than Earth's home. Space scientists have several possible Earth-like planets and moons insight, but one that is of high interest is Kepler-186f, a planet 500 light-years away. It orbits a star much like the Sun, and it orbits in a habitable zone: it is far enough from the star to allow for the pooling of water (if it is present) on the planet's surface.
Is being in a "habitable zone" enough to say the planet is habitable for human life? What characteristics would an Earth-like planet need to have to support life? What challenges would we face traveling to and colonizing Kepler-186f or other Earth-like planets outside of our solar system? Do you think scientists should spend time looking for Earth-like planets before we have the technology to visit them? Why or why not? PLEASE HELP ME!!! :((
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Answer: yes because A habitable zone (HZ) in astronomy is a region of space where conditions are best for life to form as on Earth. Planets in these areas are the most likely to have extraterrestrial life. The habitable zone may also be called the "life zone", "comfort zone", "green belt" or "Goldilocks zone".
Explanation:
Need help pls asap question is in the pic.