Which of the following was not a scientific contribution of ancient islam? 1. creation of the elephant clock

2. invention of gunpowder

3. improved measurements of planetary motion

4. advancements in optics that led to the first camera ​

According to article 1, why did massachusetts raise their taxes on citizens, and what about the currency of the time made it difficult for citizens to pay these taxes

Explain how president trumans knowledge of previous historical events influenced him to initiate us involvement in korea

Which is not a claim kennedy made? a. the fact that communist cuba is so close to american soil is one reason we need to accelerate our space program. b. his decision to shift the study of space to one of the highest american priorities was one of his most important decisions as president. c. within these last months at least 45 satellites have circled the earth. (i think it's this one) d. the mariner spacecraft now on its way to venus is the most intricate instrument in the history of space science. i need this answer really quick, so .