Answer:
Weather:
- The wind is blowing from the south.
- There is a thunderstorm warning.
- The average high temperatures for July in Yellowknife is 32.5 degrees Celcius.
- The wind is blowing at 56 km / hr.
Climate:
- The average temperature for February in Australia is 19 degrees Celsius.
- The average rainfall for June in Kenya is 3.3cm.
- 10mm of rain fell today.
- It is usually cold in Ottawa in January. -There was a cold weather advisory on Jan 21 2020.
-Hurricanes are most likely to hit the Gulf of Mexico and the Carribean.
Explanation:
Hope it helps.
1) chromatography- separation by inner molecular attractions.
2) distillation- separation by boiling point differences.
3) filtration- separation by particle size
4) crystallization- separation by solubility
If there is a close container with some water, the following procedures take place.
Initially, the system contains only liquid, and air above it. As evaporation starts (the rate of evaporation is constant for the specific temperature of the water), the molecules from the surface of the liquid escape into vapour state, in the confined space above. Therefore, the level of liquid falls.
Then starts the process of condensation. This is the conversion of vapour into liquid. Initially, escaped molecules (from liquid state) move randomly in all directions and collide with one another. As more and more molecules enter the confined space, some slow-moving molecules are pushed back. They collide with the surface of the liquid to reconvert into liquid.
In the initial stages, the rate of evaporation (constant) is more than the rate of condensation because only small number of molecules are present in the gaseous state. The rate of condensation thereafter gradually increases as the number of molecules in the gaseous phase increases. Finally, a stage is reached when the rate of the two opposing processes is the same.
The state where the rate of evaporation becomes equal to the rate of condensation is called a state of dynamic equilibrium. In such a state, although the amount of liquid level in the container does not change, evaporation has not stopped and the system is not at rest. In fact, the number of molecules, which escape from the liquid to the gaseous phase (due to evaporation), becomes equal to the number of vapour molecules that return to the liquid
"The sun radiates radiation in the UV, visible and infra-red regions of the spectrum. <span>When this reaches earth, some is reflected off the atmosphere/ clouds back into space. However, some passes through. UV </span>radiation<span> ionises molecules in the </span>thermosphere<span>, and this is the cause of the aurora." Credits to Google
Happy studying!</span>
