Recall that a period is horizontal, and a group is vertical.
So if cobalt is moving "down" a period, it would be most logical to say that it would be Ni, or nickel. It could also be Copper, Zinc, Gallium, and so on. Make sense?
Answer:
It's option A- Solid
Explanation:
Solids have definite shape and volume.
Bird droppings that contain seeds from a different location" is the correct answer. Sometimes when seeds from different areas are ingested, the genetic material is passed on.
Answer:
Plants have evolved several adaptations to life on land, including embryo retention, stomata, and vascular tissue