1.Scientists were flying over a desert or hilly wasteland or a mountain region in order to search for _____ in the ground.
a.gold
b.silver
c.metals
d.minerals
2.The study of trees,branches and roots indicates that_______.
a.there were larger amounts of gold in the branches than in the seeds.
b.there were small amounts of gold in the roots than in the branches
c.there were larger amounts of gold in the seeds growing nearest to the tree trunk than seeds growing on the ends of branches.
d.there were more gold in the branches than in the roots
3.Which is the best title ?
a.Scientists searching for metals with sepcial power
b.New methods of searching for minerals
c.Gold could be found by trees and plants
d.A new method of searching for minerals---using trees and plants
4.Which of the following is not mentioned as part of a tree that can help find minerals?
a.leaves
b.roots
c.branches
d.seeds
5.The scientists were searching for minerals by using ______.
a.X-ray
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