No. Every year the Orthodox Jewish population seems to be shrinking. Reform Jews is now the largest group of Jews.
No, the Reform and Liberal movements has the largest number of followers.
Israel has the largest Orthodox population, followed by the United States.
Orthodox Jews
Orthodox Jews.
Jews
Koptic Orthodox
Orthodox Christianity
Traditional Jews tend to be Orthodox, but some non-Orthodox Jews also hold tightly to traditional practices.
The largest religious group in Russia and the western former Soviet republics are Orthodox Christians.
No.
Initially, the largest group of prisoners was Soviet POWs. Later by far the largest group was Jews, and about 75% of the victims killed there were Jews.
Yes, non-Orthodox Jews can become Orthodox by becoming more observant. Non-Jews can become Orthodox Jews through Orthodox conversion.