Answer:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
Answer:
b. measuring the pulsations of the Sun from stations around the world.
Explanation:
The Global Oscillation Network Group (GONG) is a community-based program that wants to conduct a detailed study of the internal structure of the sun by using helioseismology. GONG relies on a team of six observatories around the world to perform its work. One of the duties of GONG is to measure the pulsations of the Sun from six stations located all over the world.
The correct answer is - cyanobacteria.
The atmospheric oxygen came from the cyanobacteria. These were one of the earliest living organisms on Earth. The cyanobacteria was using photosynthesis in order to create its own food. The photosynthesis process requires sunlight, carbon dioxide, water, and oxygen. The oxygen is mostly released as a waste product from the process of photosynthesis, thus the cyanobacteria were literally releasing oxygen that was ending up into the atmosphere. As more and more cyanobacteria there were across the planet, more and more oxygen they were releasing into the atmosphere, slowly changing the composition of the atmosphere, and setting the basis of it as we know it now.
A settled area with just one place to buy food is called a village.
Correct answer: A
This small settlement is a group of houses, together with other buildings such as a church and a school, in a country area and is usually found in a rural setting. Most villages have central point, which is the church or the marketplace.
1.D
2.F
3.E
4.A
5.C
6.B
Hope this helps!!!!
