<span>silica is a rich compound that has silicon and oxygen and it's thicker and is more resistant to flow. other lava with less silica flows easier so the amount of water vapor and other gases trapped in lava influences how lava erupts. hope the helps! </span>
Answer:
d. They provide complete records of every fossil lineage.
Explanation:
- The transitional fossil record shows the ancestral forms and the descendants thus referred to as the transitional form and thus provides evidence over the changes in the fossil lineages.
- The transitional forms are seen as falling between the various groups in the term of the anatomy and have a mixture of the characters in terms of outside and the inside of the fossil records.
- <u>In 1859 Charles darwin published the book on the Origin Of the species and he perceived the lack of the transitional fossils and gave the example of this transnational fossil as the tetrapods, fish birds ad the dinosaurs.
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Answer:
a. Its consideration of environment impact (such as accommodation for fish) became a model for future dam projects on western rivers
Explanation:
The Columbia River project was a project of great significance for the whole region, especially for the state of Washington. This project had many positive impacts such as production of electricity, irrigation for more than half of the farmlands, development of the area, opening up new jobs. One very big problem though was the impact on the species of fish in the river. As most of them are migratory species, with the building of the dam they were stopped in their movement, thus they became restricted to the upper part of the river. Also, the water and composition of the water changed, and all of these things contributed to significant reduction of the populations of the native species of fish.
South Asia is a subcontinent separated from the rest of Asia.
The first step in turning a rock into sediment is weathering and erosion. The weathering and erosion of igneous or metamorphic rocks will turn those rocks into sediment. After the broken off rocks are turned into sediment, the sediments will have to be compacted.
Hope this helps,
♥<span><em>A.</em><em>W.E.<u>S.W.A.N.</u></em></span><span>♥</span>