A Convex Lens is the type of lens used in magnifying glasses.
Answer:
Identifying the fossil is the first step. We have already identified this fossil as a clamshell. We know clam are from the sea, but if you didn't, you could conclude this from knowing where you found the fossil (likely near the beach). Discovering where it is can also lead you to a conclusion on it's arrival as a fossil, perhaps washed up on shore or buried by an animal.
Explanation:
Answer: The plant becomes self-sufficient when leaves grow onto it.
Explanation: The leaves will start photosynthesis instead of the Cotyledons providing nourishment for the seed.
