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
alukav5142 [94]
3 years ago
11

Why do sun spots appear darker than their surroundings

Biology
2 answers:
Aleks04 [339]3 years ago
3 0

Answer:

they are comer than their surroundings.

Sunspots are cooler because their magnetic fields inhibit the replenishing of heat from convective flows (due to the interaction between plasma and magnetic fields). This allows them to cool radiatively. The rest of the solar surface is constantly being replenished by convective cells that reheat it.

stiks02 [169]3 years ago
3 0

Answer:

because they are significantly cooler than the rest of the Sun's surface Despite their gloomy appearance, they are nonetheless extremely hot. A sunspot would shine brightly if it were alone in space.

OAmalOHopeO

You might be interested in
You are studying with a classmate, who explains that increasing the amount of nutrients in a lake helps submerged, rooted aquati
Nataly_w [17]

Answer:

E-You disagree because the resulting increase in phytoplankton at the surface would inhibit sunlight from penetrating into the water, thus inhibiting photosynthesis in the submerged plants.

Explanation:

Eutrophication is the process wherein nutrients specifically phosphorus and nitrogen are present in excess in a water body such as a lake. The increased concentration of nutrients promoter the growth of cyanobacteria and algae such as phytoplankton.

The increased population of phytoplankton in surface water reduces the oxygen availability and clarity of water for the organisms present in deeper layers.  Also, reduced clarity of water limits the amount of solar radiations penetrating the surface water to reach the deeper layers.

Increased nutrient levels of the lake would rather inhibit the growth of submerged plants due to reduced availability of sunlight as caused by presence of phytoplankton in surface water.  

5 0
4 years ago
If no ATP is present in the muscle cell what would be the likely result?
Elden [556K]

Answer: c. The myosin would not be able to let go of the actin

Explanation:

Muscles consists of two proteins called actin and myosin and responsible for muscle contraction.

Myosin is ATP dependant and when ATP binds to it, it is able to release the actin.

This will allow the actin and myosin to seperate from each other thus leading to muscle contraction

5 0
3 years ago
Please answer this question by circle the answers
Musya8 [376]

Answer:

c

Explanation:

7 0
3 years ago
Read 2 more answers
2. Which organelle acts like the “brain” or control center of the cell?
KiRa [710]
The organelle that acts like the brain or the control center in the cell in the nucleus.

Hope this helps!!! :D
3 0
3 years ago
Read 2 more answers
Environmental science includes elements of other related science. Give two examples of related sciences
ehidna [41]

Answer:

may be they are history and geography

8 0
3 years ago
Read 2 more answers
Other questions:
  • The ____ diet has been linked to lower risk for metabolic syndrome and stroke, improved brain health and cognitive function, and
    7·1 answer
  • If you went stargazing on a clear night, would you expect to see the stars move? explain
    6·1 answer
  • Mitochondria and other organelles are made?
    7·1 answer
  • Sandstone and basalt can be changed by heat and pressure to form _____.
    15·2 answers
  • A nonsense mutation has occurred, resulting in a truncated, nonfunctional product in the mutant. In a eukaryotic cell, a gene th
    13·1 answer
  • HURRY!!!!
    11·2 answers
  • Which of the following is NOT a function of the hypothalamus? Which of the following is NOT a function of the hypothalamus? regu
    6·1 answer
  • What would happen to a cell if its mitochondria stopped working? And why would it happen!?
    8·1 answer
  • Oogenesis ultimately results in the production of how many cell(s).
    12·2 answers
  • HELP PLEASE I GIVE YOU BRAINLIEST I NEED HELP WITH 2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!