Answer: D. A soil that is 10 percent sand, 80 percent clay, and 10 percent silt.
A soil is an aggregate of sediments that is obtained after weathering of rocks, and organic matter being added by the biological activities of the living beings like decomposition of dead and decaying organisms.
Clay is a type of soil that has fine grained particles, it has better minerals and water retention capacity than other soils like sand and silt. This makes the clay more fertile over other soils and will be suitable for gardening. Therefore, the soil composition having more amount of clay in the soil composition will be the best soil for gardening.
Hence, A soil that is 10 percent sand, 80 percent clay, and 10 percent silt is a correct option.
a. –40
b. –22
c. –1
d. 40
Answer:
Explanation:
No as they are freshwater fish and the ocean is saltwater.
Because goldfish are a freshwater species, they would not be able to survive in the ocean. The high salt content of seawater would negatively affect their bodily functions, leading to dehydration and salt imbalance.
Goldfish, a freshwater species, would face significant challenges in an ocean environment due to the high osmolarity—high salt concentration—of seawater. Goldfish have gills adapted for freshwater, meaning the osmolarity in their bodies is higher than their surroundings. Therefore, water naturally diffuses into their bodies to balance out the ionic concentration and they filter out excess water through their gills.
However, if a goldfish were to live in the ocean, the surrounding osmolarity would be higher than its body's. The high osmolarity of seawater would cause water to constantly diffuse out of the fish’s body, leading to dehydration. Simultaneously, additional salts from the seawater would accumulate in the fish's body, causing a salt imbalance that would be detrimental to the goldfish's health.
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Answer: chemical energy is first transformed into electrical energy and then into light energy.
Explanation: The battery has chemical energy. When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy.
To living organisms, the most dangerous debris from tephra is probably volcanic ash, because it spreads so widely. Therefore, option B is correct.
Regardless of composition, fragment size, or emplacement process, tephra is the fragmented material created during a volcanic eruption. Pyroclasts is another name for airborne debris used by volcanologists. If clasts are not hot enough to fuse into pyroclastic rock or tuff after they have hit the ground, they stay as tephra.
Fine-grained material that is released during violent volcanic eruptions is known as volcanic ash. Volcanic ash particles have a diameter of less than 2 mm (0.08 inches). Volcanologists refer to any volcanic rock fragments, regardless of grain size, as "tephra" when they are created during an explosive eruption.
Thus, To living organisms, the most dangerous debris from tephra is probably volcanic ash, because it spreads so widely. Therefore, option B is correct.
Learn more about tephra, here:
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