Which of the following was most likely not present in creating the amino acids of early earths water of the past?

a. sulfur

b. nitrogen

c. hydrogen

or d. ammonia

Using complete sentences, explain the differences between a command economy and a market economy. what type of economic system is created when these two systems are combined? what are the benefits of combining these two systems?

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

Giving an address, such as "1000 elysian park avenue, los angeles, .ca, its an example of describing the