24. Nuclei of the atoms consists of electrons and protons

49. Which of the following rock below the bands/layers are continuous?  

26. Whenever atoms’ last orbit is not satisfied by the number of electrons that are necessary tor it, the——————-  

30. The weakest bond is _______________;(Hint=between the Carbon layers and sometimes referred as forces not bonds)  

50. According to Vulcanist Theory (James Hutton1726-1797) rocks formed from___________  

9. According to the Plate Tectonic Theory the _______________moves on top of the __________________  

31. What is necessary in dissolving salt?  

6. Which of the following is NOT a way to help melting of magma?  

Escoge la opción correcta  Marta sueña con conocer a alguien que __________ los mismos gustos que ella.

Conjuga el verbo entre paréntesis en el presente del subjuntivo.  Los oyentes quieren que la radioemisora ________________ (transmitir) las 24 horas.