Which of the following is a transition metal in the fourth period of the periodic table?
A) Ga
B) Ca
C) Fe
D) Ag
Question 2
Which of the following pathways of the hydrologic cycle has the most branches?
A) precipitation over the oceans
B) precipitation over land masses
C) locking away of water as ice in the ice caps
D) percolation of water through the earth
E) All of the above have same level of complexity.