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
ddd [48]
3 years ago
14

Fast pls..,.,,..,,.,.,.

Chemistry
2 answers:
NeX [460]3 years ago
7 0
The answer is D) gills. Gills are how fish breath.
OLga [1]3 years ago
4 0
I believe the answer is gills

Fish's use gills to breathe, so tadpoles should use gills too

hope this helps

(got the info from a documentary i watched a couple years ago)
You might be interested in
Is zach gay and a joe biden
shtirl [24]

Answer:

yes they're gay

5 0
2 years ago
A 800N mountain climber scales a 160m cliff. How much work is done by the mountain climber?
Fittoniya [83]

Answer:

Work done, W = 128 kJ

Explanation:

Given that,

Weight of a mountain climber, F = 800 N

It climbs to a cliff that is 160 m high.

We need to find the work done by the mountain climber. The work done by an object is given by the formula as follows :

W = Fd

Put the values of F and d.

W = 800 N × 160 m

W = 128000 J

or

W = 128 kJ

So, 128 kJ of work is done by the mountain climber.

3 0
2 years ago
_________ are rocky materials mixed with very thick oil.
True [87]

Tar pits.

Need more help? Join our growing community here: https://questioncove.com/invite/098ZDB

4 0
3 years ago
Read 2 more answers
Balance the following skeleton reaction in acidic solution (if the coefficient is 1, put 1; if the coefficient is 0, put 0) and
Mashcka [7]

Answer:

2 CrO42- + 3N2O + 10 H+ -----> 2Cr3+ + 6NO + 5H2O

Explanation:

2 CrO42- + 3N2O + 10 H+ -----> 2Cr3+ + 6NO + 5H2O

Oxidizing agent: -----------------------------> CrO42-

Reducing agent: ----------------------------> N2O

explanation:

in CrO4-2 oxdiation state of Cr = +6

in Cr+3 oxidation state = +3

+6 oxidation state changed from +3 it is reduction .

so CrO4-2 is oxidizing agent

atomatically

N2O should be reducing agent

7 0
3 years ago
Energy from the Sun reaches Earth mainly by the process of *
Dimas [21]

Answer:

D.<em> </em>Radiation

<em>Explanation:</em>

The Sun always transfers its energy to any planet (Including Earth) through <u>solar radiation, infrared, and UV rays.</u> These are all examples of <u>radiation.</u>

I hope this helps you! Good luck with your test/assignment! :D

6 0
2 years ago
Other questions:
  • Which of these is NOT an example of how your community uses natural<br> resources?
    10·2 answers
  • Which has a larger radius f or -f
    5·2 answers
  • The bromination of acetone is acid-catalyzed.CH3COCH3 + Br2 CH3COCH2Br + H+ + Br -The rate of disappearance of bromine was measu
    14·1 answer
  • _______ rock can be changed directly into _______ rock with the application of heat and pressure.
    8·1 answer
  • All living creatures are from
    15·2 answers
  • (01.01 MC)
    10·2 answers
  • What happens to the electron configuration when you move down a family?
    9·1 answer
  • How many protons does Tin have?<br>A. 50<br>B. 68<br>C. 118​
    10·1 answer
  • A robotics scientist is trying to create a baseball pitching machine that will throw balls at different speeds and in exactly th
    15·2 answers
  • A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!