Answer:
True
Explanation:
True.
Recycling of metal means that there is a reduction in the cost of fuel, since much lesser metal ore would have to be mined and eventually transported. Recycling of metal also means saving of energy since we won't be mining ores from the beginning all over again, as compared. There is lesser number of quarries needed as well.
Answer:
the answer is 102- i took did it on edg
Explanation:
The process by which ice widens and deepens cracks in rock is called Ice welding.
Solution contains 45% salt
She wants to obtain 180 ounces of a mixture that
is 30% salt
Ounces of water with 45% salt solution = ?
30% = 0.3 and 45% = 0.45
Let V is the volume of water to be mixed in
ounces, then the volume of the 45% salt solution needed is 180-V
The balanced equation for the mass of salt is
0.45 x (180-V) = 0.3 x 180
81 – 0.45V = 54
0.45V = 81-54
0.45V = 27
V = 60
<span>So, 60 ounces of water is needed</span>
It is clear that the core is subject to change
