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
cupoosta [38]
4 years ago
6

A geologist notices that a river is eroding its valley at a constant rate. Knowing the height of the valley walls, how coul

Biology
2 answers:
lbvjy [14]4 years ago
7 0

Answer:

The answer is C

Explanation:

In this example, a geologist is trying to figure out how long ago a river began carving its valley (that is, the age of the river valley). The age of the river valley is determined by dividing the height of the valley walls by the rate of erosion.

For example, assume the rate of erosion is 2 mm per year. If the valley wall height is 20 m (20,000 mm), then the age of the valley can be estimated as follows...

Age of river valley = 20,000 mm ÷ 2 mm per year

Age of river valley = 10,000 years

This calculated age is a good estimate for the river valley's age. But, the rate of erosion may not have been constant throughout the valley's formation. Also, other Earth processes could affect the rate. Geologists have to account for these factors to improve their estimates.

Naddik [55]4 years ago
6 0
C A and B would both be very time consuming but I could see it being done with time lapse video but not in this scenario
You might be interested in
In corn plants, plant height is controlled by one gene with two alleles how many alleles that control the trait for height are p
Vesna [10]
Answer: 2 alleles

The number of the allele that a gene contains could be various. The allele will determine the phenotype of the organism, so more allele means more possible combination. There is only 1 gene that control the corn height and that gene only has two alleles. So, the total allele that controls the corn height should be: 1 gene * 2 alleles/gene= 2 alleles
6 0
3 years ago
Please help asap with the names and the functions <br> i will give brainlest
djyliett [7]
<h2>Name and Function of The Microscope </h2>

A. Objective Lens.

function: gathers light from the specimen, magnifies the image of the specimen, and projects the magnified image into the body tube.

B. Stage Clips

function: hold the slides in place

C. Stage

function: This is the section on which the specimen is placed for viewing.

D. Light

focused light and lenses to magnify a specimen.

E. Base

The bottom of the microscope,used for support Illuminator.

F. Ocular Lens( Eyepiece )

The lens the viewer looks through to see the specimen.

G. Arm

connects to the base and supports the microscope head.

H. Diaphragm

used to vary the intensity and size of the cone of light that is projected upward into the slide.

I. Coarse Adjustment

used to bring the specimen into approximate or near focus.

J. Fine Adjustment

used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses.

4 0
3 years ago
Organ gerak terdiri atas 2 macam sebutkan nama dan fungsinya !
VikaD [51]
Your question is <span>T"he motion organ consists of two kinds of names and functions mentioned"!</span>
4 0
4 years ago
If a single DNA strand reads as: TAC-AGG-CCT-AAT-CCG-ATT, what would its complementary strand show?
zaharov [31]
ATG-TCC-GGA-TTA-GGC-TAA

A complements T
T complements A
C complements G
G complements C
4 0
4 years ago
The name streptococcus tells you that the bacteria are arranged as _____.. A) pairs of round cells. B) Long chains of round cell
Aleksandr [31]
Hello!

The cocci/coccus are the group of bacteria that has a spherical ovoid a round shape. The streptococccus has  a long chain of round cells, but some coccus are formed just by one round cell.

Letter b)

Hugs!
7 0
3 years ago
Other questions:
  • What type of bond keeps each individual DNA strand together?
    14·1 answer
  • What cells are abundant within the large intestine and produce large amounts of lubricating mucus to aid in the passage of feces
    6·1 answer
  • All organisms begin life as a ____________ cell.
    12·2 answers
  • A functional advantage of having human testes in the scrotum rather than in the abdomen is
    5·1 answer
  • List three environmental problems that life scientists are studying
    11·1 answer
  • Cloning results in two organisms that are __________
    12·2 answers
  • What cellular components are responsible for small molecule transport within the cytoplasm?
    14·1 answer
  • Use of which type of fertilizer improves air quality?
    12·2 answers
  • The DNA evidence was gathered from the blood stain on the concrete floor. What is the source of DNA?
    7·2 answers
  • during the water cycle, water evaporates, rises into the atmosphere, and eventually falls back to earth's surface as precipitati
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!