They are calle trace fossils.
they have an equal amount of negative charged particles
Is a weight suspended from a pivot so that it can swing freely ,when released the force acting on the mass which makes it swing back and forth .
Mona!! Seems really easy to do!!
Bugs with shorter bills had more access to sustenance, enabling them to deliver all the more posterity. Bugs that happened to have short breaks were better ready to feast upon the little organic products. Their expanded access to nourishment enabled them to deliver all the more posterity, which likewise had little snouts. In any case, bugs with little bills did not emerge so as to feast upon the little natural products. Transformative change comes to fruition as the extent of people in the populace showing a specific characteristic increments from age to age. The characteristic does not change step by step in all individuals from the populace.
