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
erica [24]
3 years ago
7

Help please! I don’t know what subject to pick this is science tho!!!!!!!!!!!!!!!

Chemistry
1 answer:
miss Akunina [59]3 years ago
5 0

Answer:

C.

Explanation:

Because it decreases from October trough december

You might be interested in
What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an
Setler79 [48]
Then as the electrons in the atoms fall back down, they emit electromagnetic radiation (light). The amount of light emitted at different wavelengths, called the emission spectrum, is shown for a discharge tube filled with hydrogen gas in Figure 12.6 below.
8 0
3 years ago
Read 2 more answers
What does a chemist do​
Mama L [17]
A chemist (from Greek chēm (ía) alchemy; replacing chemist from Medieval Latin alchimista[1]) is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, reaction rates, and other chemical properties. The word 'chemist' is also used to address Pharmacists in Commonwealth English.
3 0
3 years ago
What do astronomers use to calculate the age of the universe? Select three options.
sasho [114]

The answers are

The age of the oldest stars

How fast distant galaxies are moving away from us

Patterns of background radiation.

Explanation:

The Astronomers calculate the age of the universe by looking for oldest stars, and by measuring the rate of expansion of the universe and back to big bang.

The Astronomers used the techniques like the age of oldest stars, how fast the distant galaxies are moving away from us, patterns of background radiation and along with the Big Bang as reference point, they estimate that the universe may be approximately 12 billion years old.

7 0
3 years ago
Question 7 (1 point)<br> Classify as a compound or element?<br> (NaCl<br> Blank 1:
IgorLugansk [536]

Answer:

That is a compound. If it was an element it would either just be Na or Cl.

5 0
3 years ago
Read 2 more answers
What is a characteristic that can be observed or measured without changing the chemical makeup of a substance? *
olga55 [171]
The correct answer is B
4 0
3 years ago
Other questions:
  • Given the reaction:
    9·1 answer
  • During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited li
    8·1 answer
  • PLEASE HELP!!!!
    6·1 answer
  • The characteristic temperature at which a pure solid changes to a liquid is its ______ point.
    13·1 answer
  • I need help with balancing equations
    9·1 answer
  • A single 250 gram
    10·1 answer
  • A characteristic used to describe something is called a
    8·2 answers
  • What are tiny cell structures that carry out specific functions within the cell?​
    14·1 answer
  • What is true at the equivalence point of a
    7·1 answer
  • A geologist fills three identical funnels with three different sizes of sandstone. Then, the geologist pours 500 mL of water int
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!