True
It was in a big part of Pakistan and a small part of India
Answer:
Corrective maintenance – costs due to modifying software to correct issues discovered after initial deployment (generally 20% of software maintenance costs)
Adaptive maintenance – costs due to modifying a software solution to allow it to remain effective in a changing business environment (25% of software maintenance costs)
Perfective maintenance – costs due to improving or enhancing a software solution to improve overall performance (generally 5% of software maintenance costs)
Enhancements – costs due to continuing innovations (generally 50% or more of software maintenance costs)
Explanation:
I feel like sewage water would be a source of gray water because its all of human excretions mixed into one