Answer:
Winnowing
Explanation:
Wind blows the lighter(in terms of mass) chaff from the whole grains,which are heavier(in terms of mass)
Answer: 5.74×10^8 stacks
Explanation:
The U.S. quarter has a mass of 5.67 g and is approximately 1.55 mm thick.
1 stack would contain $2.83x 10^4
No. of stacks to pay off debt=
$16,213,166,914,811/2.83 ×10^4
= 5.74 × 10^8 stacks
Conductivity is the ability of a substance to allow charge or electricity to pass through it. Metals have a lot of free electrons and are considered as good conductors while non-metals do not conduct electricity
1) In the given examples:
Al is a metal, Na is an alkali metal while P is a non-metal
The decreasing order of conductivity would be:
Al > Na > P
2)
Both Al and Ga are metals while B is metalloid.
Among Al and Ga, Al is a solid at room temperature and a better conductor of electricity. hence the decreasing order would be:
Al > Ga > B
