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
Phoenix [80]
3 years ago
9

7)

Biology
2 answers:
kow [346]3 years ago
3 0

Answer: The answer is Ozone

Explanation:  The ozone acts like a filter for shorter wavelength  and highly hazardous  uv light. It protects the life on earth.

scoray [572]3 years ago
3 0

Answer:

The correct answer is A) ozone

Explanation:

Ozone(O₃) is a layer made up of 3 oxygen molecules and present in the stratosphere layer of atmosphere. The ozone layer absorbs most of Sun's ultraviolet rays and protect us from UV radiation. These ultraviolet light are harmful to animals and humans and can cause skin cancer.

In the stratosphere, ozone is continuously converted into molecular oxygen by UV radiation which breaks O₃ into O₂ and O. Then again this O₂ converts into O₃ so the process is interchangeable.

The radiation blocked by ozone cause the heating of the stratosphere so ozone plays important role in maintaining the temperature of the earth's atmosphere.

You might be interested in
Which is NOT a factor that influences mass movements?
Kazeer [188]
Soil type would be a factor that does not influence mass movement
7 0
3 years ago
Read 2 more answers
Someone please help me !!
neonofarm [45]

Answer:

A

Explanation:

5 0
3 years ago
Explain how fertilization occurs
alex41 [277]
<span>I'm assuming this in plants.

Brief-ish answer:

"Fertilization in plants occurs when pollen grains are transported from anthers to stigma. When ripe pollen from an anther catches on the stigma of the same kind of flower, each pollen grain sends out a small thread-like tube."

Here's a fuller answer:

"</span>Fertilization occurs after pollination, when pollen grains land on the stigma of a flower of the same species. During this time, a series of events take place leading to the formation of seeds. A pollen grain on the stigma develops a tiny tube that runs down the style of the ovary. The pollen tube contains a male gamete which meets the female gamete in the ovule. Fertilization occurs when the two gametes combine and their chromosomes join. The resulting product is a normal complement of chromosomes, with some from either parent flower. The fertilized ovule forms a seed, which consists of a food reservoir and an embryo that later develops into a new plant. In gymnosperms (conifers) male gametes are enclosed in pollen grains and are transmitted by wind or insects to the female reproductive organs. Fertilization in angiosperms (flowering plants) occurs when insects or other animals transport the pollen to the female reproductive organ (pistil).<span>
</span><span>Fertilization is the fusion of gametes to launch the development of a new individual organism. In animals, the process entails the combination of ovum with a sperm, leading to the development of an embryo. Fertilization in plants occurs when haploid gametes meet to create a diploid zygote, which eventually forms an embryo.</span><span>"

source: </span>https://www.reference.com/science/plant-fertilization-occur-ccf48c80e72fc410
5 0
3 years ago
What two things can happen to the food made by plants?​
Gnom [1K]

Answer:

Food made by plants can get used by plants or by other animals as plants maybe eaten by other organisms that feed on plants by living on them, these organisms are called parasites. Or else the food can be used up by plants to carry out their metabolic activities ( activities at cellular level which keeps the plant alive ) like cellular respiration

5 0
3 years ago
Read 2 more answers
Lisa had 20 grams of water. She poured out 15 grams. Which of the following physical properties of the water changes? (4 points)
Black_prince [1.1K]

Answer:

Volume

Explanation:

The boiling point and density of water never changes, no matter how much you add

So the answer CAN'T be Boiling point or Density

Electrical Conductivity changes <em>only when the number of ions in a solution changes</em>

So it CAN'T be Electrical Conductivity

It has to be VOLUME because volume is the only physical property that changes when you add or take away liquid from a liquidous mixture

4 0
3 years ago
Other questions:
  • How many amino acids are found in living organisms
    15·1 answer
  • What is a difference between starch and glycogen?
    11·2 answers
  • How does the semipermeable membrane work?
    13·1 answer
  • Where does a plant cell store the Suns energy?
    13·1 answer
  • Can someone give a list of Detritivores in this pic?
    9·1 answer
  • Please help me please
    6·1 answer
  • A section of DNA is shown below:
    14·1 answer
  • In a loudspeaker, ............... energy is converted into sound energy.
    10·1 answer
  • Why do you think exact measurements matter in recipes? Write in complete sentences what you think and why.
    10·1 answer
  • What is the connection between the circulatory system and the respiratory system?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!