B) insertion
C) deletion
D) replication
B. sewage plant reservoirs.
C. salt reservoirs.
D. artesian wells.
The most easily polluted groundwater reservoirs are water table aquifers.
Further Explanation:
A water table explains the boundary that lies between water saturation and unsaturation ground. It is present below the rocks and soil. The water that lies after the water table is aquifers. Soil, rocks, and sediments purify it. The water table is raised through rain, snow and irrigation process. Its concentration depends on the season; it is at its higher level during the rainy season.
Sometimes, the water table crosses with a land area such as spring water and an oasis. It is exposed to the land surface from the region like canyon and cliff. The area below the pumice carries porous and light rocks that can hold more water than denser rocks. This area carries a fuller aquifer. The United States completely depends on the groundwater due to which it is more susceptible to get polluted. It occurs when the human-made substance such as oil and chemicals enters the underground water. The groundwater absorbs the fertilizer and pesticides used on crops. Therefore, it is easier to contaminate the water table aquifers.
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Answer Details:
Grade: High School
Subjects: Biology
Topic: Water Bodies.
Keywords:
Water, boundary, saturation, unsaturation, rocks, aquifers, purified, sediments, irrigation, concentration, spring, canyon, cliff, groundwater, chemicals, fertilizer, pesticides.
b. 50%
c. 75%
d. 100%
Answer:
Explanation:
a. Chrysophytes
b. Phaeophytes
c. Chlorophytes
Answer:
true
Explanation:
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Brainliest pls?
A control is a variable-independent element. Therefore, option (A) sunlight is the control used as a point of comparison.
Experiments and observations in the field of science that are designed to reduce the influence of factors other than the one being studied are examples of scientific controls. This makes the results more reliable, most commonly by allowing a comparison to be made between the control measurements and the other measurements.
Controls reduce the effects of other factors on the experiment. It verifies an experiment's claim. Controls are needed for all experimental testing, not just science.
Therefore, sunlight is used as control because its a natural source of light and most plant grows in it.
Learn more about Control variables, here:
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