Biology, 02.10.2019 11:20, Arellano2373
1. the greek philosopher democritus coined what word for a tiny piece of matter that cannot be divided?
a. element
b. atom
c. electron
d. molecule
2. according to john daltons observations, when elements combine in a compound,
a. the ratio of their masses is always the same.
b. each element contributes an equal number of atoms
c. their volumes are always equal.
d. their masses are always equal
Answers: 2
Biology, 22.06.2019 00:30, loveagirl111puppy
On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.
Answers: 3
Biology, 22.06.2019 03:30, caliharris123
What is the correct answer for the process of water eroding soil? rills, sheet erosion, gullies sheet erosion, rill, gullies gullies, rills, sheet erosion sheet erosion, gullies, rills
Answers: 1
Biology, 22.06.2019 09:30, Svetakotok
Resperation is a way to release carbon back into the atmosphere
Answers: 1
1. the greek philosopher democritus coined what word for a tiny piece of matter that cannot be divid...
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