You use está because talking to teachers, older people, grandparents, or crowds should be formal
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.
1. Apostar
2. Aguafiestas
3. Boletos
4. Aplaudir
5. Festejar
6. Parque de atracciones
Answer:
b. esquí de fondo
Explanation:
El cross-country skiiing es el esquí de fondo que se practica sobre un terreno plano o casi plano, al contrario del esquí alpino que se hace en montañas.
Es un deporte muy popular en Escandinava donde casi todas las personas tienen un par de esquís.
Es un modo de transporte y un deporte Olímpico.
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
What expression is NOT an adverb?
Clear
<u>There</u>
Easily
Regular
Thus
