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
qaws [65]
3 years ago
12

Someone plz help me :(

Biology
2 answers:
ElenaW [278]3 years ago
6 0

A. Warm air rises

Hot air is less dense than cold air, which is why cold air sinks because it absorbs less energy than warm air.

Hope it helped:)

Angelina_Jolie [31]3 years ago
4 0

A. Warm air rises

Explanation:

Warm air is less dense than cold air so it rises

You might be interested in
WILL GIVE BRAINIEST PLZ ANSWER ASAP How can technology improve people's chances of surviving a tornado?
PIT_PIT [208]
D with technology warnings are easier to give out to everyone allowing them to go to shelter
8 0
3 years ago
Read 2 more answers
Como se mantienen unidos los puentes de hidrogeno​
Alex787 [66]

Answer:

Los puentes de Hidrógeno, se forman por átomos de Hidrógeno localizados entre átomos pequeños muy electronegativos, cuando un átomo de Hidrógeno está unido covalentemente, a un átomo electronegativo, Oxígeno, Nitrógeno o Flúor, el átomo con mayor electronegatividad atraerá hacia si los electrones del enlace, formándose

si esta respuesta te ayudo, me calificas con 5 estrellitas te lo agradeceria <3

Explanation:

6 0
3 years ago
How does the fossil record show that species change over time
Tasya [4]

It shows the evolution of an being. "Fossil record, history of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock." from https://www.britannica.com/science/fossil-record

3 0
3 years ago
Explain /Define About Epidermis In Plant According To Class 9th<br>Plz Answer It Guys​
jasenka [17]
<h3 />

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

<h3>⇝ <u>Epidermis</u> :</h3>

Protective tissues includes epidermis & cork. Epidermis is basically a simple permanent tissue, protective in function. It forms one-cell-thick covering over all the parts of plant.

<h3>⇝ <u>Characteristics of Epidermis</u> : </h3>
  • Epidermis is formed of living cells, arranged in a single layer.

  • In aerial parts, epidermis is covered with a waterproof and noncellular waxy covering called cuticle.

  • Cells form a continuous layer, but in leaves epidermis has small openings called stomata.

  • Each stoma is guarded by a pair of bean-shaped guard cells which govern opening & closing of stomatal aperture.

<h3>⇝ <u>Functions of Epidermis</u> :</h3>
  • Epidermis protects the underlying tissues from mechanical injury, chemicals & infection.

  • Cuticle of epidermis protects against water loss & desiccation. It checks the rate of transpiration & evaporation and prevents wilting.

  • Stomata in the epidermis of leaves help in gaseous exchange during respiration & photosynthesis.

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

8 0
2 years ago
What are the four types of body tissues that make up the skin
Sonja [21]
Epithelial, connective<span>, muscular, and nervous </span>tissue<span>. </span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • The inner planets—Mercury, Venus, Earth, and Mars—are believed to have been formed by _____.
    13·1 answer
  • Please help me out with this
    15·2 answers
  • Which of the following summarizes the effect of clear cutting on Earth’s carbon cycle?)
    12·1 answer
  • Which country has the largest population of feral camels?
    13·2 answers
  • Addition of more myoglobin to a muscle fiber would have the largest effect on ________. fast oxidative fibers only fast oxidativ
    10·1 answer
  • Cells require energy to perform tasks such as movement, active transport, and the construction of large molecules. This energy c
    10·1 answer
  • Please help! 100 points!
    11·1 answer
  • Minerals are generally?<br><br> A. solids<br> B. liquids<br> C. gases<br> D. plasmas
    15·2 answers
  • What does NBT stand for?​
    15·2 answers
  • Hold 50ml of boiling water
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!