- None of these
- remains constant
- increase
- also decrease
a. Copper, nickel
b. Copper, tin
c. Copper, zinc
d. Copper, silver
Bronze is an alloy where copper is the primary component, with tin being the most common additional element. However, various other metals, non-metals, and metalloids can also be combined with copper to form different types of bronze.
a. Prevent global warming
b. Filter out ultraviolet rays
c. Absorb pollution
d. All of the above