Answer:
1) if mother nature pressures a species to evolve they will not evolve right therefore they past on to their offspring and the they die.
2)mass extinction occurs when something BIG happens take dinosaures for ex they were wiped out by something HUGE this was all proving by sci because of the fossils
3) the meteor (i think)
4) i don't know
Explanation:
sorry if I am wrong for any of these
have a nice day
Answer:
La "leva" era, sobre todo en la época de la revolución mexicana, una manera de tener elementos humanos en los ejércitos. Las tropas al llegar a una población buscaban a toda la población joven para enlistarlos en sus filas.
El campo se vio afectado debido a que se quedo sin mano de obra para labrarlo.
Explanation:
Because the earth is tilted on a axis and tilts differently to get the 4 different seasons
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