1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pochemuha
3 years ago
10

Today, we have seven major continents. However, most geologists don't think it was like this 200 million years ago. They think t

here was just _____.
one supercontinent
two supercontinents
three separate continents
four separate continents
Chemistry
2 answers:
Oksanka [162]3 years ago
5 0
Yeah this is option A one supercontinent
basically a long time ago we would have lived on pangea

Eventually this would split into two and we would get Gondwana and also Laurasia, so thechnically option two would be a possible choice but option A is the most possible choice.
Alborosie3 years ago
4 0

Answer:

The correct answer is one supercontinent.

Explanation:

Geologists believe that more than 200 million years ago there was one supercontinent, which is a collection of all the different existing continents. Based on gelogical evidence and software technology the borders of the existing continent were given more accurate fits in the reconstruction of one large supercontinent.

You might be interested in
Soda pop is carbonated with CO2. Mark puts one bottle of soda pop in the refrigerator and leaves the other out in the hot sunlig
fomenos

Answer:

The one left in the hot sunlight.

Explanation:

The solubility of gases decreases when temperature increases. The gas in the soda pop (CO2) left in the sun will not stay dissolved as much as the on left in the refrigerator.

3 0
2 years ago
Assertion (A): Naphthalene balls disappear with time without leaving any solid.
gogolik [260]

Explanation:

a) Both A and R are true and R is the correct

explanation of A.

7 0
2 years ago
Read 2 more answers
Deuterium is a relatively uncommon form of hydrogen, but can be created from what common source?.
Elena-2011 [213]

Deuterium is a relatively uncommon form of hydrogen, but can be created from water.

  • Heavy hydrogen commonly  known as deuterium
  • stable isotopes of hydrogen
  • gets its name from the Greek word deuterons means second.
  • has only one proton and one neutron
  • nucleus of the hydrogen's deuterium atom is known as a deuteron containing one proton and one neutron.
  • Deuterium forms chemical bonds that are stronger than regular hydrogen
  • gas deuterium is colorless
  • Deuterated water is used in Magnetic Resonance Spectroscopy.
  • used in the determination of the isotopologue of various organic compounds.
  • used in Infrared Spectroscopy.

To know more about Deuterium visit : brainly.com/question/27870183

#SPJ4

8 0
2 years ago
Which change is most likely to occur when a molecule of H2 and a molecule of I2 collide with proper orientation and sufficient e
bazaltina [42]
The collision of the molecules between the hydrogen molecule or H2, and an iodine molecule or I2, provided there would be a sufficient energy is that the system would eventually undergo a chemical change wherein a new chemical compound would be formed from these two molecules.
8 0
3 years ago
Read 2 more answers
PLEASE HELP ME
vichka [17]
Light moves in a straight line except at surfaces between different transparent materials, where its path bends.
4 0
3 years ago
Other questions:
  • At 66.0 ∘c , what is the maximum value of the reaction quotient, q, needed to produce a non-negative e value for the reaction so
    15·1 answer
  • Kinetic energy is energy that an object possesses because of its
    14·1 answer
  • A cat jumps 1 m forward and then crawls 0.2 m backward. What is the displacement of the cat? 1.2 m forward 0.8 m 0.8 m forward 1
    8·1 answer
  • If 40.0 g of HCl react with an excess of magnesium metal, what is the theoretical yield of hydrogen?
    10·2 answers
  • What are the concentrations of hydroxide and hydronium ions in a solution with a pH of 10.2?
    13·2 answers
  • Which statement describes a chemical property of iodine?
    11·1 answer
  • What would diluting the vinegar do to the rate of a reaction between vinegar and sodium hydroxide? decrease the rate of reaction
    6·1 answer
  • Assuming 100% dissociation, calculate the freezing point and boiling point of 3.11 m K3PO4(aq). Constants may be found here.
    13·1 answer
  • Which of the following phase changes is exothermic?
    9·1 answer
  • According to the following reaction, how many grams of carbon tetrachloride will be formed upon the complete reaction of 27.7 gr
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!