Answer:
Explanation:
The melting point is the temperature at which any substance melts i.e changes its state from solid to liquid.
Melting is a phase change from solid to liquid.
- Melting point is a temperature value or number.
- Melting is phase change from solid to liquid.
- Melting usually occurs when temperature is added to a body.
- The melting point of all pure samples of a compound is the same as it is an intensive property.
- Melting is physical change of matter.
the answer is A. Cones. both have seeds and pollen however Gymnosperms have cones and no flowers. and angiosperms do not have cones they have fruit
<h3>
Most railroad tracks are built from pieces of steel supported by wooden ties, and laid with a gap between the ends. </h3>
Explanation:
The reasons are:
Firstly , the thermal expansion of solid at higher temperatures.
During the summer season, the steel tracks may expand due to thermal expansion and if gaps are not laid the tracks will bend and lead to accidents.
Secondly, imbibition of water during rainy season.
During the rainy season the wooden tracks will imbibe water and swell. If gaps are not provided, this may result irregular levels of railway track. This may prove very dangerous and lead to railway accident.
Answer:
Most people live in valleys.
Explanation:
The reason for why they live there is for the view.
