What happened around 800 million years after Earth formed to allow rocks to

form?

O

A. Life began to appear.

O

B. The sun dimmed considerably.

D

C. Earth cooled sufficiently.

D. The ozone layer formed.

The most common language family is A Afro-Asiatic B. Nilo-Saharan C. Sino-Tibetan D. Indo-European

English and Punjabi belong to different language families.

the United states has a "direct democracy" since each citizen has an equal say in government operations, such as town hall meeting where residents vote on government business. True or false

what assumptions can you make about the social life and role of women in ancient China? 150-200 words.

President Lincoln had to address slavery even though he did not want to initially. True False

Suppose you live in New York. Your grandparents live in Colorado and they want to call you on your birthday before they go to bed. They go to sleep at 10:00 pm. What is the latest your time you can expect to hear from them?

Think back to the section on food in this unit, you will recall that the potato originated in A. the Andes Mountains of South America. B. the Rocky Mountains of North America. C. Ireland. D. the French Alps

Which idea inspired the design of the United government United States government

The interpretation of a halo around the moon as a sign of impending rain (or snow) stems from:

What continent has only one Spanish-speaking country?. A) North America. B) South America. C) Asia. D) Africa