A) una biografia.
B) una metafora.
C) antes de escribir.
D) el punto de vista.
Is there like a list of people or anything to help us with your work?
For an adjective that ends in an e you would put el before it because it is masculine. If the adjective ends in an a you would put la before it because it is a feminine.
Answer:
The half life of an isotope is the time that an element take to reduce the half of the mass.
Explanation:
So for example,in the case of carbon 14, one gram takes 5730 years to reduce to 0.5 g, and then, it takes another 5730 years to be reduced to 0.250 g and so and so.
So depending the mass of the sample that you have, for example, a bone that weights 15 g, it will take 5730 years to have a mass of 7.5 g, and then 11, 460 years to have a mass of 3.75 g, and then 17,190 years to have a mass of 1.875 g, and so, and so.
Hope this info is useful.
Hoy yo fui (ir) a un guateque campesino. estaba_ (ser) un _evento __ (event) especial en Cuba. Hay Mucha _comida_ (food) y _música __ (music). Yo _estaba__ (estar) muy _exitada_ (excited) . Para prepararme yo __me di una ducha_ (ducharse), yo _me vesti_ (vestirse), y yo _me arregle__ (arreglarse) el pelo.
Durante la fiesta yo _hable___ (hablar) con _mi___ (my) familia y __mis__ (my) amigos, Ellos _comen__ (comer) arroz y frijoles, pero el cerdo asado es _su__ (their) favorito. Nosotros _bailamos__ (bailar) mucho y _nos cansamos _ (cansarse). La fiesta termina y yo _volvere__ (volver) a casa. Yo _me puse__ (ponerse) los pijamas y yo _me acoste__ (acostarse)
