True. The volcanic lowlands were the source of obsidian, jade, and hermatite that the Mayans used to develop a lively trade.
Answer:
D. One-third
Explanation:
A. is not the right answer. This is too little to spend on the shelter in a year.
B. is not correct. This would be too much to spend on the shelter.
C. is incorrect. One-quarter is the same as one-forth, therefore inccorect.
<u>D. is the right answer. On avarage, one third of earnings and consumption in American household would go on shelter, meaning housing, utilities, rent etc. </u>
A. Cosmology
Cosmology means the study of the cosmos, cosmo- means of or relating to the universe, therefore cosmology means the study of the universe. So it is the correct answer.
Answer: O
Explanation:
The stars which emit the most blue light are the hotter stars and O type stars are the hottest stars there are.
O stars are larger than every other star and have surface temperatures ranging above 25,000K as well as being extremely bright.
They therefore emit the most blue light and the least red light.
