By fighting france to win independence
<h2>A: The mostly substituted fiber is <u>acrylic</u></h2>
Credit: <u>https://quizlet.com/169297076/apparels-and-textiles-flash-cards/ </u>
Answer:
<em>Coastal Armoring</em>
Explanation:
It is a practice of continuously reshaping the shoreline. It can prevent the shoreline from sandy beaches, wetlands and other intertidal area's. From moving in land and the land get eroded the sea level rises. Since its a complex process the coastal armoring has the potential to remove habits pf marine organisms and also checks the beach generation by restricting the natural movements of sediments. They act to stabilize the shoreline. According to me its a good investment as shoreline erosion may greatly impact human lives, like changes in sea level and high tides and waves or any construction of harbors, etc. Alternative channels for coastal armoring may include the building of fences and wall-like structures, raising the bar for the shoreline.
The disc which contains spiral arms of the galaxy part would be used to study the birth starts in a spiral galaxy
Explanation:
- A galaxy has four parts and they are bulge, disc, spiral arms and halo
- Bulge primarily contains old stars, gas and dust.
- The disc contains the spiral arms also, it is the flattened portion of the spiral arms where we could find most of the young stars, gas and dust. Some old stars are also found in this region
- Spiral arms are only found in spiral galaxies. It is the curved extension begins from the bulge. Here, also you could find young stars, dust and gas.
- Halo is the part where we could find clusters or individual old starts and also the dark matter. The dark matter we can't see but can estimate the gravitational force.
