Q: Why is gingko biloba planted in public spaces? Choices: - for xeriscaping - self-pollinating - self-containing - resistant to pollution A:
resistant to pollution

Q: What is the term for land that has permanently frozen soil? Choices: - ice desert - snow-field - Arctic - permafrost A:
permafrost

Q: Q: What supports and protects the soft organs of the body? Choices: - Skin - skull - Muscle - skeleton A:
A: skeleton

Question: Q: Adding carbon to iron makes what type of metal? Choices: - ions - titanium - plastic - steel A:
Answer: steel

*Question*
Q: The potential of what can be used to measure the ph of a solution? Choices: - electrodes cell - symbiotic cell - stimulation cell - galvanic cell A:
**Answer**
galvanic cell

(Q).
Q: Conifers are the most prevalent type of what plant group? Choices: - theropods - algae - angiosperms - gymnosperms A:
(A).
gymnosperms