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
defon
3 years ago
15

If scientists determine the age of a rock to be three billion years old, what else do they know? A) the rock came from outside t

he solar system B) the rock was part of a comet C) the Earth is at least three billion years old D) the Earth is younger than three billion years old
Biology
2 answers:
Burka [1]3 years ago
8 0
I think it might be C.
jonny [76]3 years ago
5 0
C) the earth is at least billion years old

You might be interested in
Why is the burning of fossil fuels, which releases carbon dioxide into atmosphere, a concern to scientists
Ulleksa [173]
They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.
5 0
3 years ago
What is homologous chromosomes?​
Yanka [14]

Explanation:

Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes, one from each parental source.

In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes. So, our cells carry 46 total chromosomes, in two copies. However, each homologous chromosome can provide a different version of each gene. Two versions of each gene create more variety, lower the detrimental effects of negative mutations, and generally stabilize a population.

I hope it's helpful!!

4 0
3 years ago
Read 2 more answers
What is the process in which plants use sunlight energy to make glucose?
Mamont248 [21]

Answer: photosynthesis

Explanation: the process in which plants use sunlight energy to make glucose is photosynthesis

8 0
3 years ago
What is an example of captive breeding?
Maru [420]

Answer:

the black-footed ferret and the California condor

Explanation:

5 0
2 years ago
Read 2 more answers
How can use of fertilizers affect respiratory health?
nirvana33 [79]

Answer: C) They can contain contaminants that can enter the air during storms or high winds.

Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).

B is wrong because water contamination does not directly relate to respiratory health.

D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).

Hope this helps :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Alfred Wegener believed that all of the continents were originally: a. a single landmass called Pangaea c. three landmasses call
    8·2 answers
  • Which structure is an adaptation that helps birds break down food? A. kidney B. gizzard C. anus D. liver
    12·2 answers
  • Members of which of the following groups of organisms have an internal skeleton?
    10·1 answer
  • What type of bonds connect the deoxyribose sugars to the phosphate groups?
    5·1 answer
  • Based on its pH value, is sea water more acidic or less acidic than pure water
    14·1 answer
  • Invasive insect species can cause severe damage to native trees and plants. Some insects bore into live trees and then get trans
    14·1 answer
  • ⚠️PLZ HELP⚠️
    11·1 answer
  • Johnny finds a hunk of something. It appears to be an element. It melts at 500*C and when it was run over by a train, it flatten
    15·2 answers
  • Question 14 (2 points)
    8·1 answer
  • Fmri scans have allowed us to make great advances in our understand of the roles of different regions of the brain. Suggest why
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!