how to separate salt and sugar?
Answer:
How to Separate Salt and Sugar
-Consider a simpler, safer alternative for a science experiment.
-Add ethanol to your salt and sugar mixture.
-Mix the solution with a spoon or a stir stick to dissolve the sugar.
-Pour the alcohol solution through a very fine strainer, and into the new container.
52
B.
208
C.
104
D.
312
The answer is C. 104
getting smaller
moving away
moving closer which one plz
Answer:
Option (3)
Explanation:
In astronomy, the redshift refers to the shifting of the beam (spectrum) of light towards the light of higher wavelength. The red coloured light has the highest wavelength. This shifting of light is due to the doppler effect, which states that the wavelength of light changes when the light source and the observer are constantly in motion with respect to each other.
Based on this observation and many other scientific investigations, the scientists have concluded that the redshift data indicates the expansion of the universe, where the distant galaxies are moving constantly and rapidly away from us.
Thus, the correct answer is option (3).
a mold fossil
a cast fossil
an original-remains fossil
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Choose all the answers that apply.
Which of the following fossils contains actual physical remains?
amber
footprint
bone
tooth
shell
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Choose all the answers that apply.
Rapid burial _____.
increases exposure to oxygen
decreases exposure to oxygen
slows down the rate of decay
prevents scavengers from eating organism remains
---
Choose all the answers that apply.
Which of the following conditions are necessary for fossilization?
warm temperature
stable geological conditions
rapid burial
exposure to oxygen
presence of minerals
--
What can fossils tell us about past species. Choose all that apply.
their closest living modern relatives
their extinction
their potential evolution
their age at death
their life cycle
--
Which of the following is the best evidence that an area once had a tropical climate?
dinosaur fossils
coral fossils
fossil fuel deposits
insects trapped in amber
--
Dr. Sheffield discovers burrows in a sedimentary rock bed. Which of the following is the most likely conclusion?
The area was once a forest.
The area was once a lake.
Worms once lived in the area.
Dinosaurs once lived in the area.
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Inna finds an unique fossil in her backyard along with a fossilized tooth. Fossils of bones, teeth, and shells have actual physical remains. So, the correct options for 1, 2, 3, 4, 5, 6 and 7 are D, (C, D and E), D, B, (C, D and E) ,D and D respectively.
Fossils are the fossilized remains of organisms that have been supplanted by rock material, including traces of species like bacteria, fungus, and single-celled organisms. The remains or evidence of prehistoric life that has been preserved through natural processes are known as fossils.
Shells, teeth, and bones are examples of fossilized organic matter. Scavengers are prevented from devouring organism remains by rapid burial. Fossilization requires stable geologic conditions. We can learn about former species' potential evolution, ages at death, and life cycles from their fossils. The best proof that a region once experienced a tropical environment is insects trapped in amber. Burrows in a sedimentary rock bed indicate that dinosaurs formerly inhabited the area.
Therefore, the correct options for 1, 2, 3, 4, 5, 6 and 7 are D, (C, D and E), D, B, (C, D and E) ,D and D respectively.
Learn more about Fossils, here:
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G. Heat from the sun reaches your skin by conduction.
H. The Suns energy is conducted to your skin by the glass
I. Heat from the room is reflected from the Windows onto your skin
In mammals, the digestive tract is made up of multiple organs such as the stomach, pancreas, and intestines. These all work together to form the organ system that we use to digest food.
An organ system may be defined as a biological system that significantly consists of a group of organs that work together in order to perform one or more specific functions as per the requirement of the body.
The organs like the stomach, pancreas, and intestines are made up of a collection of tissues in order to assist living organisms.
Similarly, the collection of all such organs leads to the formation of an organ system, which is known as the digestive system in order to stimulate the process of digestion in living entities, especially mammals.
Therefore, the digestive tract is made up of multiple organs such as the stomach, pancreas, and intestines. These all work together to form the organ system that we use to digest food.
To learn more about the Digestive system, refer to the link;
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Answer:
Explanation:
In mammals the digestive tract is made up of multiple chambers such as the stomach, pancreas and intestines. These all work together to form the alimentary we use to digest food.