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
dalvyx [7]
3 years ago
11

Which human activity has affected the nitrogen cycle? i. use of fertilizers ii. combustion of fossil fuels iii. deforestation?

Biology
1 answer:
horsena [70]3 years ago
8 0
Combustion of fossil fuels is the answer
You might be interested in
for some people, alcohol can cause an uncontrolled __________ of the eyes, making good vision almost impossible.
Nimfa-mama [501]

The correct answer is Vibration.

This is a condition in which there is a involuntary eye movement. In this the eye seems to be dancing eye and the vision is not clear. The vibration in eyes is due to consumption of alcohol. In normal condition the blinking of eyes is voluntary but due to consumption of alcohol the condition changes and the blinking of eyes becomes involuntary(neurological disorder).

3 0
4 years ago
Read 2 more answers
An atom has 8 protons, 9 neutrons and 8 electrons. What is the mass of this atom?
Alex787 [66]

Answer:

use search!

Explanation:

7 0
4 years ago
Read 2 more answers
Our Sun is all of the following EXCEPT ____.
Alex Ar [27]
The right answer is the option a, part of a binary system<span>. A binary system is two astronomical bodies which orbit one around each other due to the gravitational atraction that they mutually exert on each other. . On the other hand, Sun is a yellow star, a main sequence star and of average absolute magnitude. </span>
6 0
3 years ago
Read 2 more answers
HELP EXTRA POINTS
Troyanec [42]

Explanation:

As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere. After about half a billion years, Earth's surface cooled and solidified enough for water to collect on it.

Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. Oxygen is generated during photosynthesis by plants and many types of microbes.

4 0
3 years ago
The organic sedimentary rock made from altered plant remains is known as _____. A. coal B. shale C. chert D. limestone
lutik1710 [3]
I think it D but not sure

3 0
3 years ago
Other questions:
  • Close examination of an organ reveals a lining of multiple layers of cells. The layers are avascular and regenerate well. One su
    14·1 answer
  • RNA polymerase is an enzyme that copies (1 point)
    9·1 answer
  • Please answer!!!!!!!!
    14·1 answer
  • Alexis weighs 6.5 pounds at birth. Assuming her development proceeds normally, she should weigh about _____ pounds by her first
    15·1 answer
  • Question 3 of 5
    5·1 answer
  • Please help me with the image that I am going to attach! I am very confused
    7·2 answers
  • Where is blizzard most likely to form
    11·2 answers
  • Which nutrient is found in meat, fish and pulses? When digested it forms amino acids
    5·2 answers
  • When we talk about soil depletion, which soil horizon is affected?
    8·1 answer
  • “Which is one function of a protein marcomolecule?”
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!