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
xxTIMURxx [149]
3 years ago
11

Population growth happened as nomadic tribes began to trap, catch, and keep migrating animals confined for food use. Which of th

e following would explain this population increase?
A.The animals did not die as quickly in captivity.


B.The tribes began to come together to form larger tribes.


C.The increased available food supply decreased starvation.


D.The tribes mated with each other and increased gene pools.
Chemistry
1 answer:
Olegator [25]3 years ago
3 0

Answer:

C

Explanation:

You might be interested in
Seasonal variation in Earth's climate are caused by
Ivahew [28]
B. Earth’s tilt

Earth’s tilt exposes different parts of the earth to varying degrees of sunlight throughout the year, causing seasons.
3 0
3 years ago
When Iodine-131 emits a β particle (beta particle), what nuclide is produced? *
k0ka [10]

When Iodine-131 emits a β particle will produce Xe-131

<h3>Further explanation </h3>

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

  • alpha α particles ₂He⁴
  • beta β ₋₁e⁰ particles
  • gamma particles ₀γ⁰
  • positron particles ₁e⁰
  • neutron ₀n¹

So for reaction Iodine-131 :

\tt _{53}^{131}I\rightarrow _{-1}^0\beta +_{54}^{131}Xe

5 0
3 years ago
Read 2 more answers
Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated. Calculate the mass of carbon dioxide released wh
erastovalidia [21]
<h2>Answer: 131.9 g</h2>

<h3>Explanation:</h3>

<u>Write a Balanced Equation for the decomposition</u>

CaCO₃     →     CaO    +    CO₂

<u></u>

<u>Find Moles of CO₂ Produced</u>

Since the mole ratio of  CaCO₃  to CO₂ is 1 to 1,

the moles of CaCO₃ = moles of CO₂

moles of CaCO₃   = mass ÷ molar mass

                             = 300 g ÷ 100.087 g/mol

                             = 2.997 moles

∴ moles of CO₂ = 2.997 moles

<u>Determine Mass of CO₂</u>

Mass = moles × molar mass

         = 2.997 mol × 44.01 g/mol

         = 131.9 g

<u></u>

<h3>∴ when 300 g of calcium carbonate is decomposed, it produces 131.9 g of carbon dioxide.</h3>
6 0
3 years ago
What is neutralisation reaction?<br>​
valina [46]

Answer:

In chemistry, neutralization or neutralisation (see spelling differences) is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.

6 0
3 years ago
Read 2 more answers
Scientific Method
Leona [35]

Answer:

Problem,  Variables,  Hypothesis,  Research,  Procedure,  Data, Conclusion.

Explanation:

First, you have to know what the problem that you're talking about is. Then, you have to know the independent, dependent, and controlled variables are in order to make a hypothesis. Then do research about the topic. After that, you make the procedure your experiment, if that's what your doing. Then after the experiment, you find the data. Using that data, you make a conclusion.

4 0
3 years ago
Other questions:
  • What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 5 m/s
    15·1 answer
  • Give one example of solution which exist in gas state?​
    15·1 answer
  • PLEASE ASSIST MEEEEEEE!!!!!!!!! 40 POINTS
    13·1 answer
  • What happens to a gummy bear when soaking in water?
    8·1 answer
  • What chemical bond will S and H form
    8·1 answer
  • A graduated cylinder contains 20.8 mL of water. What is the new water level, in milliliters, after 35.2 g of silver metal is sub
    5·1 answer
  • Solid iron(II) sulfide reacts with aqueous hydrochloric acid HCl to produce hydrogen sulfide gas H2S and aqueous iron(II) chlori
    12·1 answer
  • Examples of the skills used in science include _____ and _____.
    9·1 answer
  • Which of the following is not a good safety practice in the kitchen?
    7·2 answers
  • Can I find a tutor to help me with this question?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!