Biology, 01.01.2020 00:31 sineguguhopengw1407
38)
is the distance from crest to crest in a sound wave.
a.) magnetic wave
b.) wavelength
c.) quasar
39)
doppler technology is used to predict the weather.
true
false
40)
this scientist suggested that at one time all of the continents were joined in one big piece. he named the single land mass pangea and called the process continental drift. select the correct answer.
a.) harry hess
b.) alfred wegener
c.) charles darwin
41)
the plates of the earth are supported by the mantle.
true
false
42)
the energy to move the earth’s plates comes from the crust.
true
false
43)
moving plates can form both mountains and valleys.
true
false
44) heat flow that involves particles touching one another is called:
a.) radiation
b.) conduction
c.) convection
d.) mechanics
e.) condensation
45) heat transfer that takes place as a result of currents in liquids and gases is called:
a.) radiation
b.) conduction
c.) convection
d.) mechanics
e.) condensation
Answers: 1
Biology, 22.06.2019 01:00
What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.
Answers: 3
Biology, 22.06.2019 12:30
Which anatomical plane is the only one that could not show both the sternal region and vertebral region
Answers: 1
Biology, 22.06.2019 19:30
Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above
Answers: 1
Biology, 22.06.2019 21:00
Brass gets discoloured in air because of the presence of which of the following gases in air? a. oxygen b. hydrogen sulphide c. carbon dioxide d. nitrogen
Answers: 2
38)
is the distance from crest to crest in a sound wave.
a.) magnetic wave
...
is the distance from crest to crest in a sound wave.
a.) magnetic wave
...
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