Is the entrance exam for BTech Environmental Engineering easy or difficult to crack?

It depends on which entrance exam you are referring to. For example:

JEE Advanced is very difficult 

JEE Mains is moderate to difficult 

State level exams are moderate

Private university exams are easy 

The entrance test for the course is usually considered moderately challenging, demanding a strong hold over the PCM subjects, general knowledge, and logical reasoning. The difficulty level of the exam may vary on the basis of the particular exam you're planning to appear for, the number of applicati