What are main error types? Which types are most dangerous and why?

Correct any false statements:

(a) Compile-time errors are usually easier to detect and to correct than run-time errors.

(b) Logically errors can usually be detected by the compiler.

Differentiate between a syntax error and a semantics error.

Differentiate between a syntax error and a logical error in a python program. When is each type of error likely to be found?