题库 Science 题目列表 Which of the following is NOT true:
Single Choice
Which of the following is NOT true:
A.

compounds have atoms from more than one element

B.

atoms can bond together to make molecules

C.

all helium atoms have one more proton than all hydrogen atoms

D.

all oxygen molecules have 8 neutrons

E.

an irrational number is one that cannot be expressed as the ratio of integers

F.

fractions equal to 1 are called mixed fractions

G.

the numerator is less than the denominator in a proper fraction

H.

a composite number is a positive integer greater than 1 that is not prime

I.

every real number has a reciprocal

J.

the product of two integers is always positive

K.

the quotient times the divisor equals the dividend

L.

the product of two numbers is greater than either factor

M.

the boiling point of water decreases with increased altitude on Earth

N.

the melting point of table salt is much higher than that of glucose

O.

radon is radioactive

P.

metals react with nonmetals to form new metals

Q.

a line that intersects 2 other lines at different points is called a transversal

R.

if a ≤ 0 (read as: if a is less than or equal to 0), then the absolute value of a equals a

S.

the square of an integer is called a perfect square

T.

the real numbers include all rational and irrational numbers

U.

the largest angle in a right triangle is 90º

V.

each side of a regular polygon has the same length

W.

the side opposite an obtuse angle is the shortest side of a triangle

X.

a triangle can have only 1 obtuse angle

Y.

all tropical depressions form into tropical storms

Z.

the Intertropical Convergence Zone is mostly located near the equator

[.

most hurricanes originate along the equator

\.

all hurricanes have a counterclockwise motion

].

the freezing point of pure water is 0ºC at sea level

^.

when pure water freezes, it reaches its maximum density at 0ºC

_.

adding salt to ice will lower its melting point

`.

when pure maple syrup is cooled below 0ºC, pure water ice separates out

a.

global sea levels have generally risen over the past 18,000 years

b.

the Mississippi River Delta in Louisiana has one of the highest rates of wetland loss in the U.S.

c.

tide stations measure local sea levels

d.

most of Earth’s groundwater comes from glacial meltwater

e.

all fires burn with a yellow flame

f.

snowflakes and raindrops often contain bacteria

g.

a general rule for solubility is that ‘like dissolves like’

h.

a super-cooled liquid is a liquid at a temperature below its normal freezing point

i.

all yeasts are nonpathogenic in humans

j.

all humans have the same number of chromosomes

k.

all bats carry rabies

l.

all DNA contains phosphorous

m.

all living things require energy except in some states of dormancy

n.

energy is transformed from one state to another in living things

o.

the laws of thermodynamics do not apply to living things

p.

enzymes allow certain reactions to occur at faster rates than without them

q.

π is an irrational number

r.

a dodecahedron has 12 faces

s.

5 factorial is 5-times as large as 4 factorial

t.

if n is a multiple of 2, then n + 1 is also a multiple of 2

u.

unlike charges repel

v.

lithium is an alkaline earth metal

w.

magnetic poles always come in pairs

x.

some isotopes of helium have 1 proton

y.

all natural numbers are whole numbers

z.

all whole numbers are integers

{.

all integers are rational numbers

|.

all numbers can be both a rational number and an irrational number

}.

all the DNA in a eukaryotic cell is contained in the nucleus

~.

chiasma are a method of genetic interchromasomal exchange

.

in deuterostomes, the blastopore forms the anus

.

in lower plants the sporophyte is parasitic upon the gametophyte

.

sound waves can be considered longitudinal waves

.

light slows down when it enters glass from dry air

.

as a light wave’s frequency increases so must its amplitude

.

light can be produced with one frequency

.

pyroclastic flows dominate Hawaiian volcanoes

.

granitic magma contains less silica than basaltic magma

.

peridotite is rock found within the Earth’s mantle and some meteorites

.

plutons are large masses of basalt

.

the temperature of a substance changes during a phase change

.

a compound can be broken down by chemical means

.

some known elements are unstable and only last for fractions of seconds

.

the opposite of vaporization is condensation

.

neutral pH solutions have small but equal numbers of hydronium and hydroxide ions

.

when an acid is added to water it will increase the solutions concentration of hydronium ions

.

strong acids dissociate almost completely in water

.

strong bases do not dissociate in water

.

weight decreases as you move away from the Earth’s surface

.

mass times gravitational acceleration is weight

.

gravitational potential energy increases with increasing height

.

kinetic energy can only decrease when potential energy decreases

.

23 – 3 × 2 = 17

.

72 ÷ 9 – 3 = 5

.

0.3 + 0.4 × 2 = 1.4

.

6 + 6 × 2 = 18

.

two numbers are reciprocals if their product is 1

.

one-half of three quarters is three eighths

.

a whole number is divisible by 5 if the ‘ones’ digit is 0 or 5

.

an example of a proper fraction is 4 6

.

5 × 0 = 0

.

2 × ½ = 5 ÷ 5

.

0 5 0 =

.

5 0 5 =

.

30% × 60% = 18%

.

the square of an odd number is always odd

.

the reciprocal of the smallest prime number is ½

.

the number 27 is a perfect square

.

the Milky Way is an elliptical galaxy

.

our Sun will become a red giant in the far distant future

.

constellations are patterns of stars in the night sky

.

the average sunspot cycle is 11 years

.

yeast reproduces asexually

.

lichens are the mainstay of the caribou diet

.

coal is not a native mineral

.

a spider’s web is made from a specialized carbohydrate

.

when diluting strong acids, it is safer to pour the acid into the water

.

carbon monoxide is a poisonous gas

.

iron plays a central role in the chlorophyll molecule

.

the pH of soapy water is basic

.

a robotic spacecraft recently landed on the surface of a near-Earth asteroid

.

a team of researchers plan to build a neutrino observatory at the bottom of the Mediterranean Sea

.

skin cancer is becoming more common and appearing at younger ages

.

solar activity is currently at an 11-year cyclical high point

.

all natural numbers are whole numbers

.

all whole numbers are integers

.

all integers are rational numbers

.

all numbers can be both a rational number and an irrational number

.

all the DNA in a eukaryotic cell is contained in the nucleus

.

chiasma are a method of genetic interchromasomal exchange

.

in deuterostomes, the blastopore forms the anus

.

in lower plants the sporophyte is parasitic upon the gametophyte

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