Answer:
cold water temperature of the lake
Explanation:
mark me branilist
Answer:
presence or absence of a protective covering over the ovule
Explanation:
In angiosperms, seeds develop from ovules and are enclosed in the ovary. So, their is the presence of protective covering making the seeds enclosed.
On the other hand, gymnosperms have seeds that are borne on cones, so they are naked due to the absence of any protective covering over the ovule.
The Republic of Korea. (Check my source of the World Cancer Research Fund first.)
The correct option is c. (20 m) .
As the formula to calculate wavelength is :
wavelength = wavespeed / frequency