One cell phone contains many metals, including about 25 g
of aluminum, about 15 g of copper, about 0.03 g of gold,
and about 0.3 g of silver.
Based on this information, which resource is most likely used to make cell
phones?
A. A large river and its streams
B. An old-growth forest of tall trees
C. A farm with sheep and cattle
D. An underground deposit of minerals
Answers: 1
Biology, 22.06.2019 07:00
Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
Answers: 2
Biology, 22.06.2019 09:00
Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna
Answers: 1
Biology, 22.06.2019 09:30
What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
Answers: 1
One cell phone contains many metals, including about 25 g
of aluminum, about 15 g of copper, about...
Mathematics, 04.12.2020 19:40
History, 04.12.2020 19:40
History, 04.12.2020 19:40
Mathematics, 04.12.2020 19:40
Mathematics, 04.12.2020 19:40
Chemistry, 04.12.2020 19:40
Computers and Technology, 04.12.2020 19:40
Mathematics, 04.12.2020 19:40