The fossil record is the record of life on earth preserved in rock as fossils. The fossil record provides evidence of what types of plant and animals lived, how long they lived, how they died, and changed. It also tells us about Earth’s early environment, and how it changed. The fossil record helps determine the age of rock formations by looking at how deep the fossil are buried in the rock. When a fossil is found above another fossil in a rock formation, the deeper fossil are considered older.What can scientists infer about a specific period of Earth's history if many fossils were discovered from oxygen-breathing organisms?
A) the atmosphere lacked oxygen
B) only fish lived during that time
C) the dinosaurs used all the oxygen
D) the atmosphere had lots of oxygen
Answers
Scientist infers about a specific period of Earth's history if many fossils were discovered from oxygen-breathing organisms, only fish lived during that time. The correct option is B).
What are fossils?
The preserved remnants of plants and animals that were submerged in sediments like sand and mud beneath ancient seas, lakes, and rivers are known as fossils.
The skeleton remains when an animal passes away because the soft components of its body disintegrate first. Sediment, which is made up of tiny rocks, buries this. The sediment surrounding the skeleton starts to consolidate and convert to rock when new layers of sediment are added on top.
A group of fossils that have been examined, classified, and organized both historically and taxonomically make up a fossil record. When organisms die, they are encased in mud and rock and eventually replaced over time by minerals.
Therefore, the correct option is B) only fish lived during that time.
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Answer:
d is wrong the correct answer is b
Explanation:
The atmosphere lacked oxygen is correct. The lack of animals that used oxygen suggests that the environment did not have much oxygen.
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25 POINTS! Which traits are characteristic of both single-celled and multicellular organisms? Choose all answers that are correct. A. contain organs that help them survive B. have metabolism C. can reproduce a whole colony in a matter of hours D. have ability to reproduce
Which substance is use to increase the rate of catalyst?
Answers
Answer : The equilibrium constant expression will be,
Explanation :
The given balanced chemical reaction is,
The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.
The concentrations of pure solids are constant that is they do not change. Thus, they are not included in the equilibrium expression.
So, the equilibrium constant expression will be,
Answer: D
Explanation:
Answers
Answers
Some things that dont have mass at all are: light, emotions, thoughts, and more...
Nonexamples of mass include concepts or entities that do not possess mass. Examples of such nonexamples are thoughts, emotions, energy, and light.
What are nonexamples of mass?
Nonexamples of mass include concepts or entities that are not considered to have physical substance or do not exhibit the property of mass. Some nonexamples of mass include ideas, emotions, time, and mathematical concepts. These entities are abstract and do not possess the physicality or measurable mass associated with material objects.
While thoughts and emotions are subjective experiences within the mind, energy and light are forms of radiation or wave-like phenomena that do not have a measurable mass component. Mass is a property associated with matter, which refers to the physical substance that occupies space and possesses inertia.
Read more about mass here: brainly.com/question/28021242
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Answers
B. an isotope
C. a new element
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2.pahoehoe
3.friction
4.viscosity
5.element
6.silicia
7.compound
8.carbon
Answers
Correct answer choice is:
3) Friction
Explanation:
Low viscosity relates to materials that are thin, such as water, while high viscosity materials are thick. The viscosity of a fluid is a sum of its opposition to progressive deformation by shear strain or tensile stress. For liquids, it compares to the simple idea of thickness, for example, honey has a very greater viscosity than water.
Answer:
Option (3)
Explanation:
The magma that is comprised of low silica content is termed as low viscosity magma. By low viscosity magma, it means that the magma can easily flow over the surface, without any difficulty. This indicates that there is less friction between the surface and the flowing magma. Friction usually refers to the resistant force that obstructs the flow of a liquid in any direction.
When there is a high frictional force, then the liquid flows very slowly with much difficulty. On the other hand, when there is a low force of friction, then the liquid can flow easily over a surface.
Thus, in a low viscosity magma, there is low silica content, so there is less frictional force between the surface and the magma, and the magma flows easily over the surface.
Hence, the correct answer is option (3).