Answer:
(a) 2
Explanation:
Two points will define a ray. One of them is the end point. The other defines the direction of the ray.
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Any line segment, ray, or line will consist of an infinite number of points. In each of these cases, 2 points is sufficient to define it.
Answer:
Antarctica is the driest continent; it is almost entirely desert. Very little snow or rain falls on the continent, but because it is so cold, the small amount of precipitation that does fall does not melt.
Explanation:
Hope it helps
Answer:
1- Efectivamente, hoy en día nos encontramos viviendo en un mundo globalizado, ya que se trata de un sistema mundial interconectado, donde todas las sociedades y gobiernos tienen una comunicación fluida y constante entre sí en forma rápida y dinámica. Esto se ha logrado a través del desarrollo de los medios de comunicación, que permiten la conectividad a gran escala.
2- Un aspecto positivo de la globalización en mi vida personal es que el desarrollo de las comunicaciones y las tecnologías me permite poder comunicarme con personas de mi familia que viven en otro país a decenas de miles de kilómetros de distancia, con solo apretar un botón y esperar tan sólo unos pocos segundos. Es decir, la globalización acorta las distancias y reduce los tiempos, uniendo más a las personas y, por ende, a los pueblos y países.
3- Un efecto negativo de la globalización es que todos los eventos políticos y sociales que ocurren en un país tienen repercusión en los demás países. Por ejemplo, una ley en los Estados Unidos puede influir en el desarrollo del comercio en Latinoamérica, influyendo negativamente en las economías de países con menor desarrollo, pudiendo causar problemas económicos a estos.
Answer:
This passage is mainly about asteroids striking Earth.
Explanation:
The presented passage is mostly focusing on asteroids striking Earth. It is something that has been happening since Earth has formed, and it will happen in the future as well. The vast majority of the asteroids don't really have any impact on Earth, but some have an impact that is devastating and long-lasting.
In the earlier stages of Earth, many more asteroids were falling on the surface, and the main reason for that has been the lack of atmosphere or a very thin atmosphere. As the atmosphere started to take shape and became similar to what is nowadays, the asteroid impacts decreased significantly because the atmosphere was managing to burn them and break them apart. This is not possible with all asteroids though, as some are so big and fall under an angle where the atmosphere doesn't really have any impact on them so when they fall on the surface they are able to cause sudden climatic changes, mass devastation, and mass extinction of species. Such an asteroid will be in a direction to hit Earth in the future for sure, the question remains will humans with their technology be able to prevent an impact or not.
