Explanation:
Activists during the Vietnam War increased pressure on Congress to change the voting age, and in 1971, when Senator Randolph reintroduced his original proposal, it passed overwhelmingly. ... Fearing mass confusion over who could vote in the 1972 election, Congress quickly moved to pass the 26th Amendment.
Answer:
False
Explanation:
don't quote me on this but, I believe the green house effect is caused by the sun. the sun gives of UV rays that penetrates the O zone layer and gets trapped inside causing the earth to get gradually hotter. (I'm not 100% on this)
Answer:
Economic benefits of the patent system The economic benefits of the patent system are derived from its roles in promoting innovation, and encouraging investment, economic growth, knowledge sharing and the efficient use of resources. These aspects of the patent system are briefly discussed below.
Promoting innovation
Innovation benefits the community by creating new and improved goods and services that meet social needs. For example, innovations in medical research may produce new diagnostic tests or treatments, which improve community health.
Answer: 4. the canal made more goods available to the masses
Explanation: pls give branliest