Questions

Mutex is a program object that allows multiple program threads to share the same resource, such as file access, but not simultaneously. When a program is started a mutex is created woth a unique name. After this stage, any thread that needs the resource must lock the mutex from other threads while it is using the resource. the mutex is set to unlock when the data is no longer needed or the routine is finished.

About 71% of the earth's surface is covered with water. In that 71% only 4% of water is a fresh water.

The "Pradhan Mantri Shram-Yogi Maandhan" scheme was launched on 15-02-2019. Under the PM-SYM scheme, the workers will get amount of Rs. 3,000 pension after attaining the age of 60 years. 

The average Life span of RBC is 120 days.

The two functional groups Amine and carboxyl groups are always found in amino acids.