Answer:
The water cycle brings water to everywhere on land, and is the reason that we have rain, snow, streams, and all other kinds of precipitation. Stopping it would cause an endless drought.
Along with a lack of water flow, many existing water sources would lack filtering. No water flow in lakes would cause overgrowth, killing many species of fish and other lake wildlife
Answer:
a) Physical soil test could be the humidity, chemical soil test could be the pH.
b) An advantage will be that both of them are easy and quickly to do. The disadvantage is that you need to buy the instruments to measure it.
Explanation:
a) A physical measure is the one that can measure the water, temperature, structure of the soil, etc. is a characteristic that can show characteristics of the soil without changing it nature.
A Chemical measure will indicate some other requirements like pH, concentration of a nutrient, etc. This kind of measure can be modify is the crop need more nutrient or a different pH to grow.
b) Advantages and disadvantages will be different depending the studies to make. One advantage in all of them is that is easy to get and will give crops with high percentages to obtain harvest, avoid sickness, etc.
The great disadvantage is that in most of the measurements, is needed an instrument that has a cost and need some reactants some of them or calibration.
Hope this info is useful.
El Niño is a natural event that periodically weakens the
western surface of ocean currents in the equatorial pacific ocean. In an El Niño,
the wind that pushes water around (which keeps the east warm and west cold)
gets weaker making the ocean warmer, changing the air temperature and precipitation patterns in the United States.
You can find the subject of a map in the title and also the legend, where they show you what the symbols represent.