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What does solvent do in the water cycle A rain has bits of rocks in it B hail is hard C rivers stop running D minerals are washed into the sea?
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What effect do golf courses have on rivers?
The golf courses have a potentially harmful effect on the rivers. Golf courses are constantly sprayed with pesticides and other fertilizers that will kill fish when washed into rivers.
Why is it important that the sample spots are not below the solvent level when the filter paper is first placed in the developing chamber?
By placing the spot above the level of the solvent in the beaker, you slow the flow of solvent which results in improved separation of the components in the spot. If you placed it below the level of the solvent in the beaker, the solvent would just flow at a much faster rate and instead of separating the components in the spot, they would simply be washed away.
How can pollen be transferred by water?
By pollen being washed away down rivers to other plants that may feed from the river water
What problem will ensue if the level of the developing liquid is higher than the applied spot in a TLC analysis?
The effect on chromatographic work if the solvent level in the developing chamber is higher than the spotted sample is a thin layer chromatography. The solvent becomes polar enough and spot will move some distance.
How do rivers change the earth surface?
Rivers erode material from one location, and then deposit that material in another location. Rivers are like conveyor belts in that sense, and its always on! Rivers begin life as mountain streams usually. As the water comes down from height and passes through different rock and minerals, it erodes these materials at different rates according to how hard and resistant the materials are. The eroded particles are absorbed in the river (suspended) and washed away down stream where they will be deposited according to the geology of the area it happens in. This will then form features of deposition. This is the life cycle of the river and you can tell the age of rivers by knowing about these process of erosion and deposition as you follow its course down to the sea which is where most rivers end, or they flow into another river.
What minerals dissolve in sea water?
They are washed down by rivers and added by rainfall. They also leach into the seawater from the sea bed
Why is the recovered crystals must be washed with cold solvent?
cold solvent cleans the crystals - without dissolving them.
How did southern and northern Mesopotamia differ in terms of soil fertility?
The headwaters of the Tigris and Euphrates Rivers were in mountainous territory. The rivers washed silt down the rivers and fertile land acumulated in the river basins, replenished each year by the soul washed down the rivers by the rains in the northern mountains.
Grains of sand are washed into rivers and oceans through the process of?
Erosion
What are the steps when minerals deposit by the beach?
Its called erosion. A rock at the top of a mountain , can contain minerals or ores. Rain, wind and other factors erode the rock leaving the ore exposed, this eventually gets washed down the mountain, through rivers streams and eventually onto the shores or banks where they can be collected without mining.
How do trees prevent the banks of rivers from being washed away?
by holding it onto its place
What effect do golf courses have on rivers?
The golf courses have a potentially harmful effect on the rivers. Golf courses are constantly sprayed with pesticides and other fertilizers that will kill fish when washed into rivers.
What is the process of washing minerals out of the topsoil?
Process by which substances are washed through or out of the soil is called leaching.
What effects do dyes have on the environment?
When the left over dye gets washed away it spreads to rivers and pollutes them.
Can diamonds be found under water?
Yes, alluvial stones, washed away from their kimberlite pipes by rivers, can be found under water, in rivers and in the sea where the river empties.
Where is a turtles habitat?
They are found in lakes, rivers, shallow parts of the ocean and sometimes just washed up on the beach.
Did the ice age cause salt to form in the oceans?
No. Salt is washed into the ocean from rivers and picked up from rocks.
