What am I going to select?? What are my choices bro????
Answer:
Explained
Explanation:
Cold working: It is plastic deformation of material at temperature below recrystallization temperature. whereas hot working is deforming material above the recrystallization temperature.
Given melting point temp of lead is 327° C and lead recrystallizes at about
0.3 to 0.5 times melting temperature which will be higher that 20°C. Hence we can conclude that at 20°C lead will under go cold working only.
Answer:
The performance of the polymer is basically change by the various type of factors like shape, tensile strength and color.
The polymer based products are basically influenced by the environmental factors like light, acids or alkalis chemicals, salts and also heat.
The additives is one of the type of chemical polymer which basically include polymer matrix for improving the ability of processing of the polymer. It also helps to enhance the production and requirement of the polymer products in the environment.
This statement is b which is true: hope this helped
Answer:
kindly check the explanation section.
Explanation:
In order to be able to preserve resources that are common there is need for each countries in the world to agree and cooperate. Also, policies should be set and made the standard for all countries involved. The developed countries should come together with developing measures to make sure that there is mutual agreements between these countries to preserve common resources. For instance, the most common resource is the Ozone layer, the industrialization in developed countries causes the depletion of ozone.
The main problem that the kind of preservation entails is how to get money for countries that are not rich enough to follow the agreed laydown rules. Other problems are: differences in economies and each countries have their own ways of regulating and preserving resources.
