I think it is not possible to make cd without plastic . because except plastic no other material is so durable for making cd.
Copper is a mineral and an element essential to our everyday lives. It is a major industrial metal because of its high ductility, malleability, thermal and electrical conductivity and resistance to corrosion. It is an essential nutrient in our daily diet. And, its antimicrobial property is becoming increasingly important to the prevention of infection. It ranks third after iron and aluminum in terms of quantities consumed in the USA.
The answer is C: How long does it take distilled water to evaporate from a 5” diameter container?
Answer:
1) Increasing temperature
2) Stirring
3) Increasing surface area of salt by grinding it
Answer:
greenhouse effect is the same as global warming
Explanation:
they both mean warming of the earths surface
