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
timama [110]
3 years ago
11

How do scientists measure the idea of time so long ago?

Chemistry
1 answer:
aleksklad [387]3 years ago
4 0

The Ancient Egyptians used simple sundials and divided days into smaller parts, and it has been suggested that as early as 1,500BC, they divided the interval between sunrise and sunset into 12 parts. ... Known as a clepsydra, it uses a flow of water to measure time.

You might be interested in
Strong bases are good conductors of:
Zepler [3.9K]

Answer:

B. Electricity

Explanation:

8 0
3 years ago
Read 2 more answers
How does water affect the growth of a plant?
irina1246 [14]

Answer:

Water transports important nutrients throughout the plant.

Explanation:

Much like blood in an animal, water is necessary for a plants survival, as it transports important nutrients from the soil all through the plant's stems and leaves.

3 0
3 years ago
Read 2 more answers
A. Consider the following neutral electron configurations in which n has a constant value. Which configuration would belong to t
NeTakaya

Answer:

2s2 2p5

Rb < Sr< Sn< Te<I

Explanation:

Electron affinity is the ability of an atom to accept electrons to form negative ions.

Electron affinity is a periodic trend that decreases down the group but increases across the period.

This accounts for the trends observed in the answer. The atom having the electronic configuration, 2s2 2p5 must be a halogen and it exhibits the highest value of electron affinity.

Also, since electron affinity increases across the period, the electron affinities of the elements increases. Therefore, the arrangement of atoms as shown in the answer depends on increasing electron affinity.

6 0
3 years ago
Which of the following is the best definition of a scientific theory?Help me plz
tatiyna
A scientific theory is a well tested explanation of a natural phenomenon.
7 0
3 years ago
What is h2o? I’m in 1st grade
Crazy boy [7]

Answer:

Water

Explanation:

H20 means

H = Hydrogen

2 = 2 Hydrogen atoms

O = Oxygen (1 atom)

Thanks!

Mark me brainliest!

5 0
2 years ago
Read 2 more answers
Other questions:
  • What kind of energy does a rubber band have when stretched
    7·2 answers
  • The half-life of bismuth is 5 days. How much of a 100 gram sample will remain after 20 days?
    13·1 answer
  • If a 273g of a material displaced 26 mL of water, what is its density?
    14·1 answer
  • 1. If in the following diagram the substance is in solid form during stage 1, at what stage do the particles have no intermolecu
    13·2 answers
  • On a mission to a newly discovered planet, an astronaut finds gallium abundances of 61.29 % for 69Ga and 39.71 % for 71Ga. What
    15·1 answer
  • Given the data calculated in Parts A, B, C, and D, determine the initial rate for a reaction that starts with 0.45 M of reagent
    9·1 answer
  • Which of the following statements is false? A) Entropy increases with the number of microstates of the system. B) The total entr
    6·1 answer
  • Which of the following conclusions might a scientist make when fossils of two different species of very similar organisms are fo
    9·1 answer
  • Why do we need to use moles when we try to determine amounts of reactants and products in a reaction?.
    6·1 answer
  • Perform the following
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!