Answer:
Adenine, Guanine, Cytosine, Thymine
All organisms do have a closed circulatory system
so A <span />
Infrastructure refers to the underlying workings of a city, community, such as an electrical grid, sewer and road systems around a city. Infrastructure also refers to the to the facilities serving a particular city or country. Including facilities that contribute to the city or country's economical growth or economical function. They are services that can enhance the way of living, or living conditions of a community or city.
Explanation:
During metamorphism, pressure and temperature, a times fluids causes the mineral composition and texture of a parent rock to change.
Texture is the arrangement and orientation of mineral grains in a rock.
- Rocks that are made up of single mineral phase rarely undergo compositional changes.
- Rocks like quartz sandstone and limestone do not change minerals.
- In limestone, the mineral calcite is dominant. Since there are no other minerals to combine with, it's composition does not change.
- But a metamorposed limestone undergoes changes in texture.
- The searing heat and pressure causes the grains to recrystallized, they interlock to form a granular pattern.
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Metamorphic changes brainly.com/question/869769
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