Answer:
White Dwarf Stars.
Explanation:
A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains.
When focusing a specimen you should always start with lower power objective .
<h3>How to use microscope?</h3>
- Lower the stage (the flat ledge on which the slide is situated) to its lowest setting.
- Onto the stage, place the glass slide. Make sure the cover slide doesn't move or break when you push it under the clips.
- Choose an objective lens with the lowest .
- Once the cells are visible, turn the coarse focus knob.power
- When the cells are sharply in focus and visible, steadily turn the finefine focus knob.
- To see the cells more clearly and to repeat steps 1 through 5, use the higher.
- When using the high power objective only the fine adjustment knob should be used.
- The type of microscope used in most science classes is the light microscope.
- You should carry the microscope by the arm .
- The objective are attached to what part of the microscope revolving nosepiece.
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Answer:
the decomposers do what their name says... they decompose
Explanation:
they decompose the dead animals and plants and turn them into nutrients that helps the plants grow
Answer:
C
Explanation:
Without decaying wood , the nutrient cycle is unbalanced
Water fluoridation and cancer risk in assessing whether fluoridated water can cause cancer, osteosarcoma is so rare that there is little need to study the risk of fluoride. fluoride should not be added to water according to research from dentists.
<h3>What is fluoride?</h3>
Fluorides are compounds formed by combining fluorine with another material, usually a metal. Fluoride monofluorophosphate, sodium fluoride, and stannous fluoride are a few examples. (MFP fluoride).
Some fluorides exist naturally in soil, air, or water, though fluoride levels can vary greatly. Fluoride is present in almost all water. Fluoride can also be found in plant and animal foods.
Fluorides are absorbed into the bloodstream through the digestive tract once within the body. They circulate in the blood and tend to congregate in calcium-rich tissues such as the bones and teeth.
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