What are the four possible

protein bases, or nucleotides?

What does the future look like for water supplies, and what energy challenges does desalination face as a solution? (Site 1)

Is the underlined verb in the sentence an action verb or a being verb? I have been hungry all morning.

Which is the largest country? A. French Guiana B. Venezuela C. Suriname D. Guyana

Which of the following is not located in Central Asia? a. Ili River b. Syr Dar'ya River c. Pamir River d. Irtysh River

Which religious group makes up a majority of the population of Pakistan? a. Hindus b. Muslims c. Buddhists d. Sikhs

Choose the state and capital that border the east coast of the United States.

Trees in deciduous forest do what? A. Shed leaves during one season B. Grow in a warm Mediterranean climate C. Have needlelike leaves D. Grow in a climate that is cold year round

How many miles long is the great wall of china

What landforms are created at convergent boundaries?

In which direction does the Sun appear to move across the sky? Ofrom west to east from east to west from north to south from south to north