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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Answer: b. renewable energy source
Explanation:
Renewable resources: These are resources that can be replenished with time through natural process.These are the sources which never depletes completely.For example: bio mass energy, solar energy etc.
Non-Renewable resources: These are resources that cannot be replenished with time through natural process. These are the sources which are used in wise manner so that they do not get depleted. For example: coal, petroleum etc.
They contained toxins or pollutants that eliminated natural competitors of the zebra mussel.
They contained few or no natural predators of the zebra mussel.
They contained few or no natural species occupying the niche filled by the zebra mussel.
Answer:
They contained few or no natural species occupying the niche filled by the zebra mussel.
Explanation:
All the available options are capable of contributing to the success of the zebra mussel in the United State water.
However, it is not true that the United State water contained few or no natural species occupying the niche filled by the zebra mussel. The zebra mussel are exotic species that got into the United State water around 1991 and were able to outcompete the native species and multiply rapidly, a characteristic of an invasive species.
Abundance of prey for the zebra mussel will ensure that their population thrives due to adequate availability of food.
The presence of toxins or pollutants that eliminate natural competitors of the zebra mussel will enable their population to thrive due to lack of competition for resources, provided the toxins/pollutants are not toxic to the zebra mussels themselves.
The presence of few or no natural predator will also enables the population of zebra mussels to thrive because that is another limiting factor removed.
Answer:
Vancouver Island is divided in two by the chain of Vancouver Island Ranges that cover it in its entirety. The highest point of this chain is the Golden Hinde, 2,195 meters high. The island's climate is among the mildest in all of Canada. In summer, maximum temperatures reach 30 ° C. The west coast is one of the most humid places in North America and, apart from some areas of Chile, one of the most humid regions in the world along with the equatorial territories. In the towns of Tofino and Ucluelet the average annual rainfall is 3300mm.
The eastern coast, especially in the southern part, has a quasi-Mediterranean climate with the driest summer season, and maximum temperatures reaching 30 ° C and minimum in the winter of -7 ° C.
B. the foods the finches ate
C. the mating behavior of the birds
D. the climate on the different islands