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
Mariulka [41]
3 years ago
8

When did homo spiens leave africa

Chemistry
1 answer:
german3 years ago
7 0

homo sapiens leave africa at approximately 200,000 years ago.

You might be interested in
Consider a balloon of nitrogen gas and a crystal of sugar sitting on a table at room conditions. Select the appropriate statemen
yKpoI14uk [10]

Answer:

about the same

Explanation:

Thermal energy is constant at a certain temperature in general. The energy is denoted by K_BT

Where,

K_B is the Boltzmann constant

T is the absolute temperature

Given that the balloon filled with nitrogen gas and the crystal of sugar are at room conditions means that they have same conditions and thus they will possess same energy irrespective of the states of the matter.

Thus,

The thermal energy of the sugar molecules is <u>about the same</u> as that of nitrogen molecules.

6 0
4 years ago
O which type of molecules, polar or nonpolar, dissolves in water
Anna007 [38]
The polar molecules dissolve in water, because water is also a polar molecule.
"Like dissolves like".
:)
7 0
3 years ago
Which of the following changes to a system WILL NOT result in an increase in the system’s pressure?
Sophie [7]

Answer:

B. All the rest raise P.

Explanation:

6 0
3 years ago
What produces the magnetic force of an electromagnet?
bagirrra123 [75]

Answer:

movement of charged particles through the wire .

Explanation:

When electricity is passed through the wire of electromagnet , moving electrons of the wire produces magnetic field . This magnetic field in increased due to high permeability of soft iron of the electromagnet . It is this magnetic field which creates magnetic force .

6 0
3 years ago
Also what happens if you decrease NOCL
Paladinen [302]

Answer:

el que paso del one jhaulio

Explanation:

6 0
3 years ago
Other questions:
  • A change in odor can also be a clue that a chemical change has occurred. Describe at least one situation in which you might be l
    7·1 answer
  • Mendeleev created the first periodic table by arranging the elements in the order of ?
    6·1 answer
  • Ammonia and hydrogen fluoride both have unusually high boiling points due to
    13·1 answer
  • If you prepare 525 mL of a .650M MgCl2 solution, how many grams of solute would you need?
    12·1 answer
  • How many grams of CO2 are in 2.52 mol of CO2? <br> Show using demential analysis
    14·1 answer
  • What are three possible ways a new gene inserted into cells using gene therapy could improve a person's health?
    14·1 answer
  • What is the name of the molecule below
    9·1 answer
  • A student calculates the density of an unknown solid. The mass is 10.04 grams, and the volume is 8.21 cubic centimeters. How man
    9·1 answer
  • During which process in the water cycle does water release thermal energy? Explain how you know.​
    15·1 answer
  • Calculate the molality of a solution containing 14. 3 g of nacl in 42. 2 g of water
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!