Answer:
a spider has 4 pairs of legs, since they have 8 legs
petrified fossils -> date sedimentary rocks, this will be more precise but Carbon 24 dating would probably a very reliable way of gathering information too
Answer:
Water harvesting (WH) and small-storage technologies are key water-related ... technologies can also help provide water for domestic use, livestock, fodder and tree production, ... WH is the collection of rainfall runoff for subsequent beneficial use. ... of rainfall entering soil storage, where it can later be used directly by plants.
Explanation:
D. They convert glucose into another form of energy used by cells.
According to my dictionary, the best word that matches this definition would be ''mutation'' since it changes its form by turning or transforming into something else or duplicating.