A. ozone accumulation
B. ozone depletion
C. acid rain
- Which of the following metal occurs in free state ______________?
- The presidency of Abraham Lincoln began on ______________, when he was inaugurated as the 16th President of the United States?
- The second daughter of our Holy prophet (SAW) was ______________.
- ICC stands for ______________.
- The outermost layer of skin is called__________?
- The study of cancer is called_____________?
- PSR J0108-1431 is the closest known ______________ to Earth?
- A Triac is a ______________?
- Fog in the forms of warm rain falls into a cold layer of surface air is called ______________?
- The Paralympics is a competition for the ______________.
- Hydrogen peroxide (H2O2)______________?
- Shoe was thrown at Nawaz Sharif on March 11, 2018 at ______________?