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
Triss [41]
3 years ago
12

15. A geologist discovers a sample of fine-grained rock made up of very small crystals. Based on its physical appearance, what c

an the geologist conclude about the rock?
Biology
2 answers:
Kipish [7]3 years ago
7 0

Answer:

It formed from rock that cooled quickly

Explanation:

B.

kiruha [24]3 years ago
6 0

Answer:

It is an extrusive igneous rock

Explanation:

Based on the physical appearance, the geologist can make an accurate conclusion about the rock's formation and in which type of rocks does it belong. The fine-grains made up of small crystals give away clues about the formation of the rock. Fine grains with small structures occur when the lava reaches the surface and cools off very quickly, thus not giving the crystals enough time to grow, so they are very small. The geologist can classify this rock on base of this information as an igneous rock, as it has been formed from lava, and as an extrusive igneous rock, as the fine grains and small crystals only occur when the lava cools of quickly on the surface.

You might be interested in
The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?
Nat2105 [25]

Answer:

The answer is D. The autonomic nervous system.

3 0
3 years ago
Natural selection can be described as all of the following EXCEPT Question 1 options:
kiruha [24]
Survival of the strongest... an organisms strength does not affect the natural selection process. Natural selection is adapting the species to be able to better survive in its environment. In order to better survive, an organism does not to be strong. e.g. a plant is probably not a “strong” organism and natural selection doesn’t change that in most cases
4 0
3 years ago
What is the difference between a parent isotope and a daughter isotope?​
Nookie1986 [14]

Answer:

Each combination of an element with a different number of neutrons is called an isotope. The radioactive isotope is called the parent, and the isotope formed by the decay is called the daughter

3 0
3 years ago
What is the harmful impact the use of insecticide has on the environment
zimovet [89]
Well the insects eat the plant and the small animals eat the insects and so on.if the insects die the food chain is broken. 
4 0
3 years ago
Dton
Dafna11 [192]

Answer:

polypeptides

Explanation:

Amino acids generally represent the building blocks of proteins. In order words, proteins are polymers of amino acids.

The amino acids in proteins are linked together by peptide bonds. <u>A peptide bond is formed between two amino acids when the amine group of one of the amino acids combines with the carboxylic group of the other with the elimination of water</u>. When the reaction involves multiple amino acids, multiple peptide or polypeptide, also known as protein is formed.

4 0
3 years ago
Other questions:
  • "what are the two sources of energy that power the earth system?"
    14·1 answer
  • How did the work of geologists support Darwin’s theories about evolution?
    14·1 answer
  • Rickettsia is an example of an __________ which can only replicate inside a host cell.
    10·2 answers
  • What is not an impact to ecosystems during a drought
    13·1 answer
  • A species becoming dependent on another species is _____. rapid evolution instantaneous speciation co-adaptation sympatric speci
    6·2 answers
  • Your biceps muscle is attached with tendons to the top of your humerus and to the end of your radius, near your elbow. What woul
    14·1 answer
  • PLEASE HELP!!!! 1OO POINTS!!
    10·2 answers
  • Describe biosphere, decomposer, lithosphere, organism, hydrosphere, community, atmosphere, taiga, biome, desert, ecosystem, envi
    15·1 answer
  • What are the two test for water
    5·1 answer
  • Genes that code for proteins that promote the cell cycle and inhibit apoptosis are called _____.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!