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
harkovskaia [24]
3 years ago
13

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

he geologist conclude about the rock?
A. It formed from magma that cooled slowly.
B. It formed from the remains of living organisms.
C. It formed from materials produced by living organisms.
D. It formed from magma that cooled quickly.
Biology
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

D. It formed from magma that cooled quickly

Explanation:

From several experiments, geologists have come to terms with the fact that when magma cools rapidly, it does not give room for large and big sized crystals to form. Instead, tiny, little crystals would be formed.

For example, obsidian and most volcanic rocks.

When a magma has enough time to cool and solidify, we see very big crystals of minerals in them.

You might be interested in
Which is a renewable energy resource? <br> A. uranium <br> B. natural gas<br> C. biomass fuel
Zinaida [17]

Answer:

B, Natural Gas

Explanation:

5 0
3 years ago
Read 2 more answers
17. Addition of hydroxide ions to a solution will
JulijaS [17]

Answer:

D

Explanation:

Addition of hydroxide ions will decrease its acidity and make it more basic.

3 0
3 years ago
EwfjwjfgejjjjjjjjjjjIO4
OlgaM077 [116]
JjjjjI04? HWBDJWNDJWJ
4 0
2 years ago
Nutrient rich blood from the instestines flows directly to
LenaWriter [7]

Answer:

Nutrient-rich blood flows into the liver from the intestines through the hepatic portal vein.

7 0
2 years ago
Read 2 more answers
One negative side effect of with anaerobic synthesis of energy is that a by-product of glycolysis is ________.
dem82 [27]

One negative side effect of with anaerobic synthesis of energy is that a by product of glycolysis is lactic acid

lactic acid cause muscle fatigue and post exercise  muscle soreness. when you exercise the body uses oxygen to break down glucose for energy. when one do intensive exercise, oxygen may not be enough therefore lactic acid is produced.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Part 1: crossing beak color and tail-feather length cross a yyll (heterozygous parent with dominant traits) with yyll (homozygou
    11·1 answer
  • PLEASE HELP! WILL MARK AS BRAINLIEST!!!
    13·2 answers
  • The Quiver tree grows in Southern Africa. Which of the following plant adaptations is likely to prevent these trees from dying o
    7·1 answer
  • If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?
    12·1 answer
  • Number 4 for the explain your reasoning part please help 30 points!!
    6·1 answer
  • HELP ME PLEASE!!! Genetics, botany, zoology are all branches of what subject.
    7·2 answers
  • For the body to function normally, the organs and tissues must communicate to control the development of the cells and tissues.
    14·2 answers
  • The red panda is an endangered mammal. Red pandas live in the trees in the forests in China. Explain one way of
    5·1 answer
  • Are plants a source or sink of photosynthesis?
    10·1 answer
  • Which question is impossible to test through observation? Which bird species migrates in winter?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!