Which of the following factors determines whether a protostar becomes a star

A. surface temperature

B. age

C. color

D. mass

An observation is a form of informal assessment that

Jane Shore's poem "High Holy Days" has the narrative structure of: a personal reminiscence dialect. high diction. steam of consciousness. a sonnet.

Without heat from the Sun, the water cycle would

How many days would it take 1 square meter of reef to accumulate 30 mmol of calcium carbonate?

Educational Psychology is an applied psychology.

Climate is best described as the A. long-term average of weather variations in a specific area. B. areas where the temperature can drop below freezing. C. daily weather as predicted by a meteorologist. D.

How do geographers divide the world into regions

What are the ""agencies"" to which Rachel Carson refers (para. 33) ? Why are they reduced to ""so-called control agencies""?

In an offshore pipeline a cylindrical mechanism called a pig is run through the pipes periodically to clean them. These pigs travel at 2 feet per second. What is this speed expressed in miles per hour.

Which of the following is a scientific question about butterflies? A. Why do people find butterflies so beautiful? B. Should butterflies be caught for insect collection C. How far do butterflies fly each winter? D.