Which is T.B. day?

Typhoid and T.B. are which kind of diseases?

Radioactive ""^(131)I has a half-life of 8.0 days. A sample containing ""^(131)I has activity 20mu Ci at t = 0. (a) What is its activity at t = 4.0 days? (b) What is its decay constant at t = 4.0 days?

Radioactive 138I has a half-life of 8.0 days .A sample containing 138I has activity 20 mu Ci at t=0.(a) What is its activity at t=4.0 days?(b) What is its decay constant at t=4.0 days?

Radioactive 131I has a half-life of 8.0 days .A sample containing 131I has activity 20 mu Ci at t=0.(a) What is its activity at t=4.0 days?(b) What is its decay constant at t=4.0 days?

Which day is called Malaria day?

Which day is called Malaria Day?

The world TB day is

The world TB day is

T.B. is a common abbreviation used for which disease ?