Genetically modified crops are created by inserting genetic material from one species into another.
Answer the following statement true (T) or false (F)
True
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Barium ions carry a 2+ charge, and nitrogen ions carry a 3? charge. What would be the chemical formula for the ionic compound barium nitride?
A. Ba3N2 B. Ba3N4 C. Ba2N2 D. Ba2N3
Currently the most common way to extract natural gas is by ________.
A. Hydraulic fracturing B. Collecting it from abandoned deep mines C. Collecting it from deep ocean thermal vents D. Separating it from crude oil pockets
Mafic igneous rocks are ____
a. high in silica and low in heavy minerals b. low in silica and high in heavy minerals c. high in silica and high in heavy minerals d. low in silica and low in heavy minerals e. only low in silica
Which principle of relative dating can be used at Siccar Point in Scotland to determine that the rocks below the unconformity were tilted to vertical before erosion occurred?
A. lateral continuity B. original horizontality C. contact effects D. inclusions