Moon is the _______ satellite of the Earth?
Moon is the _______ satellite of the Earth?A. Natural
B. Artificial
C. Navigation
D. None of these
B. Artificial
C. Navigation
D. None of these
A. Oxygen
B. Cabon Dioxide
C. Silicon
D. Clay
A. 60
B. 120
C. 180
D. 240
A. Anemometer
B. Battery
C. Galvanometer
D. Rectifier
Melanoma (skin cancer) is associated with ______________?
A. ozone accumulation
B. ozone depletion
C. acid rain
D. allergens
A. O-
B. O+
C. AB+
D. AB-