The symbol notation now used for elements was developed by
a. Dalton.
b. Berzelius.
c. Rutherford.
d. Bohr.
b
Physics & Space Science
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About 540 million years ago, a sudden increase in biological complexity occurred, known as the _______________
Fill in the blank(s) with correct word
Physics & Space Science
The oxygen in our atmosphere is produced by ________
Fill in the blank(s) with correct word
Physics & Space Science
The pressure inside a commercial airliner is maintained at 1 ATM (1.01 × 10^5 N/m2). What is the outward force exerted on a 1.0 m × 2.0 m cabin door if the outside pressure (at 10 km height) is 0.3 ATM?
a. 1.4 × 10^2 N b. 1.4 × 10^3 N c. 1.4 × 10^4 N d. 1.4 × 10^5 N e. 7.0 × 10^3 N
Physics & Space Science
What does it mean when we say the Earth's interior is differentiated?
What will be an ideal response?
Physics & Space Science