Answer:
Using my searching skills, the answer is motor neurons.
Explanation:
Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
Answer:
The halogen bulb lasts longer because the filament lasts longer. It can have twice the life of an incandescent and use the same amount or slightly less (10%) electricity.
Explanation:
Answer:
When water or melted ice soaks into the cracks of rocks and freezes, thus causing stress in the rocks due to expansion, causing the rock to break. This is called <u>Freeze-Thaw.</u>
Explanation:
- Mechanical weathering is the process of breaking big rocks into little one by the means of Temperature , roots of plants , water .
- <em>Little animals also help by burrowing and digging through the ground. Temperature also affects the land . The cool nights and hot days always cause things to expand and contract. That movement can cause things to break apart . Roots and plants also push into the rocks to crack and break apart.</em>
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- Scientist have observed a process called freeze-thaw.
- <em>That process occurs when the water inside of rocks freezes and expands . That expansion cracks the rocks from the inside and eventually breaks them apart . </em>
- The freeze-Thaw cycle happens over and over again and the break finally happens. Another word for it is frost wedging. There are already some cracks in boulders and water can get inside these.
- When that water expands, the rock is crunched between two expanding pieces of ice instead of being forced apart into separate pieces.
Expansion
Explanation:
Expansion is the change is size of a body with increasing temperature and tension.
Bridges are built of iron. Iron thermally expands in the presence of increased temperature during the day. The length of the iron will increase by simple fractions. At night, when temperature drops, the bar returns back to its initial position.
- The allowance for expansion of the metal is made in order to prevent tension within the structure.
- Not doing this will cause the material to break since there is no free space for the bar to change shape.
Learn more:
Expansion in gases brainly.com/question/9979757
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For reaction a, the mole number of gas increase from 2 to 4. So the entropy will increase, ΔS>0. For b, the gas will change to solid, so the entropy decrease, ΔS<0.
