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
Llana [10]
3 years ago
13

If scientists determine the age of a rock to be three billion years old, what else do they know?

Biology
1 answer:
Mkey [24]3 years ago
4 0
C) The Earth is at least three billion years old. :)
You might be interested in
Which type of rock was the first to exist on the planet?
timurjin [86]

Answer:

B- sedimentary

Explanation:

4 0
2 years ago
What effect would fertilizers have if they entered the st.johns river ecosystem?
galben [10]
If fertilizers  enter the St.Johns river they will result in nutrient overload, or eutrophication and harming the ecosystem of the river. The river will exceed its assimilative capacity for nitrogen and phosphorus. this will <span>deplete oxygen in the water needed by fish and reduce light that is essential to submerged vegetation. </span>
4 0
3 years ago
If you want brainlist answer my questions and you will get it ​
pashok25 [27]

Answer:

ti teg lliw uoy dna snoitseuq rewsna tsilniarb tnaw uoy fi

Explanation:

mirror

7 0
3 years ago
What is the difference between variable and fixed costs?
VladimirAG [237]
"<span>Based on variability, the costs has been classified into three categories, they are fixed, variable and semi variable. </span>Fixed costs<span>, as its name suggests, is fixed in total i.e. irrespective of the number of output produced. </span>Variable costs<span> vary with the number of output produced. </span>Semi-variable<span> is the type of costs, which have the characteristics of both fixed costs and variable costs".</span><span>


<span /></span>
6 0
3 years ago
Read 2 more answers
Butter is an example of
Mashutka [201]

Answer:

The answer is A- A saturated fat

4 0
3 years ago
Other questions:
  • Why are unit trains more efficient than mixed freight trains?
    5·1 answer
  • Describe the parts the accessory organ play in the digestion of food
    7·1 answer
  • What can amniocentesis and chorionic villus sampling tell a couple about their developing fetus?
    13·1 answer
  • While most of the cells in a hair are dead, the living epithelial cells are found in?
    14·1 answer
  • Which part of the cell contains most of a cell's gentic information in eukaryotes cell
    11·1 answer
  • How has the study of mitosis affected scientists’ knowledge of cancer?
    8·2 answers
  • Which is a function of the cell membrane?
    14·2 answers
  • How does Surface Runoff affect Nutrients in the Soil?
    6·1 answer
  • What do stabilizing selection and disruptive selection have in common??
    7·2 answers
  • Please help me out i’ll give brainlist
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!