b. Check for a mistake in recording the data
c. Run the experiment again to verify the accuracy of the original data.
The price of cotton is very high, because it is a natural fiber that must be cultivated and then harvested in certain months of the year, which in itself is a disadvantage because it interrupts the continued production of textile merchandise.
The above generates a very strong economic impact, in addition the environmental impacts are what most concern since to keep this crop in good condition, the use of pesticides, fertilizers and other minerals is constantly used that greatly pollute rivers and lakes, affecting Biodiversity. Cotton is the largest consumer of water among agricultural products, which also generates a great depletion of this valuable water resource.
For the above reasons, the use of artificial polymers emerged as a more economical and environmentally friendly alternative, since sports garments are cheaper and more resistant, they can also be kept longer, they are also more resistant to wrinkles, moths and mold.
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Answer:
Synthetic clothes are economically less expensive and lightweight compared to common traditional clothes; however, they pose difficulties for recycling
Explanation:
Polymers are compounds made of long repeating molecules, which can be classified according to their origin into natural and synthetic. Synthetic polymers include, among others, nylon (household products), polyvinyl chloride, also known as PVC (clothing), polypropylene (packaging), etc. As compared to traditional clothes made up of cotton, synthetic clothes offer significant advantages related to production costs, i.e., they can be produced in high-scale processes, and automated production is less expensive than traditional processes. However, synthetic polymers consist of long repeat chains of molecules that have very strong atomic bonds, which make difficult their degradation by decomposers (i.e., non-biodegradable in nature). The process of degradation of synthetic clothes can take up many years to break down these compounds. In addition, synthetic clothes are also pollutants because they are lost in the water when they are laundered, remaining for many years in water ecosystems.
southern Africa
western Australia
northern South America
The correct answer is - southern Africa.
The coal fields found in the southern part of the African continent and the eastern part of the United States are a direct evidence that supports the theory of the continental drift. The reason for that is that the coal found in both locations is the same one, from the same type of trees, formed in the same period. All of those clues suggest that the continents were once merged together, as for starters, the type of tree that gave the basic material for the coal is the same, and trees that are totally the same is almost impossible to be found in separated continents as they will have some modifications that will distinguish them. The climate and period in which the coal is formed is also exactly the same, which also leads to the conclusion that there was once a large connected land mass.
Answer:
africa
Explanation:
Answer:
B. It is a single-stranded molecule
Explanation:
Unlike DNA, RNA is usually single stranded and can folds back upon itself forming a secondary structure known as Hairpin loop. DNA is double stranded. In this way both RNA and DNA become more stable and are prevented from forming bonds with other molecules.
Answer:
With the help of technology in farming, the farmers are making progressions in generating more food for the developing world. With the help of technology like various kinds of machinery, a farmer at present time exhibit the tendency to feed more than 155 individuals, in comparison to 1940s when a farmer was only able to feed approximately 19 individuals. The modifications in equipment usage have made a huge influence on the manner by which the farmers possesses the tendencies to grow food and farm.
Answer: The correct answer is-
Bacteria and archaea differ in the biochemical composition of their cell wall as bacteria have peptidoglycans in their cell wall whereas archaea do not have peptidoglycans.
Bacteria and archaea are the two groups of prokaryotes ( as they lack nucleus and membrane bound organelles) that occupy two distinct domains according to three domain system classification of Carl Woese.
They both are single celled, microscopic organisms. Archaea live in extremenly harsh environmental conditions ( such as hotsprings) whereas bacteria live in moderate environmental conditions.