A(n) _______________ air mass is the coldest air mass that impacts North America. (two words)
Fill in the blank(s) with correct word
continental Arctic, Continental Arctic
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A solar maximum is a period during which sunspots are numerous
Indicate whether the statement is true or false
What evidence supports the contention that the strong nuclear force is stronger than the electrical interaction at short internuclear distances?
A. Uranium deposits are always slightly warmer than their immediate surroundings. B. The radio interference that arises adjacent to any radioactive source C. Neutrons spontaneously decay into protons and electrons. D. Protons are able to exist side by side within an atomic nucleus.
All the organisms that live in a specific area and all the abiotic features of their environment make up a(n)
A) population. B) community. C) ecosystem. D) food web.
Which properly describes surface winds within the Tropics?
A. winds blowing from northwest to southeast in the northern hemisphere, winds blowing southwest to northeast in the southern hemisphere B. winds blowing from southwest to northeast in the northern hemisphere, winds blowing northwest to southeast in the southern hemisphere C. inconsistent winds, called the doldrums which last for most of the year D. winds blowing from northeast to southwest in the northern hemisphere, winds blowing southeast to northwest in the southern hemisphere