Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. ... Road salt, toxic substances from mining sites, and used motor oil also may seep into groundwater.
(Didn’t apply the statements so I answered the question hope I helped!)
Mark as brainliest please!~
Answer:
D. was rejected at first, but later accepted by the scientific community
Explanation:
when alfred wegener first proposed his theory of continental drift, he was basically a laughing stock in the scientific community. they didn't accept his theory and thought it was crazy and unbelievable. despite this, wegener kept believing in his own theory, but unfortunately it wasn't really until after he died that the scientific community actually accepted his theory of continental drift.
Let's call your number n. Twice your number is 2n. The product of your number and twice your number (so n multiplied by 2n) is 128.
Set up an equation:
n × 2n = 128
2n² = 128
Divide both sides by 2:
n² = 64
Square root both sides to isolate n:
n = 8
The question asks for half your number, so just half 8:
8 ÷ 2 = 4.
Half your number is 4.
