Answer:
For 8.) it is either b or c but most likely b
I dont really know for 7 tho sry
Explanation:
Answer: It is the result of a mixture of radiation from many independent sources, such as stars and galaxies.
Microwave background radiation is a form of electromagnetic radiation that is present in the whole universe and completely fills it. In fact, it is the leftover radiation from the Big Bang that occurred 400,000 years before the events related to this cosmic radiation.
Its frequency belongs to the microwaves range and is one of the main demonstrations of the of the Big Bang theory model.
Answer: The potential energy in the system is greatest at X
Explanation: Potential energy is how much energy an object can have. Gravity has an effect on potential energy, the higher something is, the more potential energy it has. For example, if you hold a book above your head, that book has potential energy. When you drop the book, it has kinetic energy. Therefore, since point X is the highest point, the ball has the greatest potential energy there.
<u>Answer:</u>
The geography of the Americas and Oceania contributed to their unique development by providing them with the most favorable climatic conditions and abundance of valuable natural resources.
<u>Explanation:</u>
- The geography of the Americas and Oceania has been blessed with possibly the most diverse features than any other continents in the world.
- The Americas are surrounded by oceans on all the sides and so is Oceania.
- The availability of valuable natural resources in the Americas and Oceania has allowed the regions to prosper at a great pace.
- Land-forms favorable for various occupations, the existence of perennial water resources and various other factors like these have contributed to the unique development of the continents.
If there are bodies of water and land to cultivate nearby then that is a good situation for agriculture to take place so that there is where to plant and also a source of water to keep the plants alive and growing. Where human beings find such a geographic situation, say like along the Nile River then a class of small farmers can develop and this is a social stratum.
