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
Deffense [45]
3 years ago
9

What are comets composed of? A. iron B. silicon C. ice and dust D. oxygen and nitrogen (this is for Astronomy)

Biology
1 answer:
horrorfan [7]3 years ago
6 0

Answer: ice+ dust

Explanation: they are composed of dust, rock and ice.

You might be interested in
1. Which pair of nitrogenous bases will form a bond in a DNA molecule?
nexus9112 [7]

Answer:

adenine and thymine

Explanation:

3 0
3 years ago
According to newtons laws of motion, what causes an object to change its state of motion
Inessa [10]

Answer:

Newton's first law of motion states that there must be a cause which is a net external force for there to be any change in velocity, either a change in magnitude or direction.

3 0
2 years ago
Most of a cell’s functions cannot use energy directly from the food we eat. Describe how the energy from food can be transferred
dezoksy [38]
By digesting the food as grown into cells maybe. i am not 100%sure. 
4 0
3 years ago
In quiet breathing, muscular effort is used mainly in inspiration, and expiration is largely passive, due to elastic recoil of t
Zielflug [23.3K]

Answer:

During quiet breathing, the main muscular effort is made in the inhalation process and the expiration process is mainly passive as it depends on the inhalation.

The expiration occurs due to the elastic recoil that causes a decrease in volume. In this process, the contraction of the diaphragm helps in the inhalation which is least affected by the intercostal muscle. During quiet breathing, the rate of inhalation and expiration time is relatively proportionate to one another.

8 0
3 years ago
The Endoplasmic Reticulum ( ER ) was represented by string cheese in the Cell Pizza Lab video . What is the function of the smal
aalyn [17]
I think it’s B

The smooth endoplasmic reticulum serves as a transitional area for transport vesicles. It also functions in carbohydrate and lipid synthesis.
5 0
3 years ago
Other questions:
  • What membranes allow only certain materials to pass through them?
    6·1 answer
  • A student builds a model of the heart and brain, shown in the diagram. Two trucks, 1 and 2, travel between the organs. The stude
    11·1 answer
  • The Milky Way is a _____ galaxy.
    11·2 answers
  • A scientist is using an enzyme to get ach reaction to occur within a cell sample and o the reaction occurs best when the low Wha
    11·2 answers
  • ANSWER QUICK!!EASY QUESTION!!<br><br>u can pick more than one answer ​
    12·2 answers
  • Which statements explain what the fossil record indicates?
    8·2 answers
  • According to the body-cover theory of phonation, which part of the vocal fold is not considered to be a portion of the cover
    5·1 answer
  • Please help me in this question​
    6·2 answers
  • !!!!!!!!!!!!PLEASE HELP ME PLEASE PLSEASE!!!!!!!!!!
    5·1 answer
  • The digestive and respiratory rely on the ___ system to<br> transport needed materials to the cells.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!