Scientists were motoring a meteor headed toward earth. It moved off course , but some pieces of rock entered the earths atmosphere . Which atmospheric layer protected the earth against the danger of the rocks ? A.the troposphere B.the stratosphere C.the mesosphere D.the thermosphere

Answers

Answer 1

Answer:

The correct option is C.

The atmosphere is made up of five different layers, which are: exosphere, thermosphere, mesosphere, stratosphere and troposhere. The farthest layer is the exosphere while the nearest one to the earth surface is the troposphere. Each of these layers have their specific functions. The mesosphere is the one that is responsible for protecting the earth surface from meteors and asteroids. The mesosphere functions by burning up the greater parts of these substances before they enter the earth surface.

Answer 2

Answer: The answer is C. The atmospheric layer that protects the Earth against danger of the rocks is the mesosphere. This layer is above the stratosphere. Meteors are rocks from the space that enter the atmosphere. Meteors burn as they go through the mesosphere layer. However, not all are completely burned some survives and still enter the Earth's surface. These are then called meteorites.

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I WILL MARK BRAINIEST IF ITS RIGHTWhich are functions of the stomata in the leaves of seed plants? Check all that apply.

reduce water loss
make glucose
absorb sunlight
take in carbon dioxide
produce oxygen

Answers

Answer:

Reduce water loss

Explanation:

Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.

Sorry if it's wrong

produce oxygen and reduce water loss i believe

What's the layer of material found at the innermost part of wood?A. Sapwood
B. Cork cambium
C. Vascular cambium
D. Heartwood

Answers

The answer is B. Cork Cambium.

What would most likely occur if an experimental design specifies only a test group?a)The experiment will lack a control.
b)The experiment will lack a purpose.
c)The experiment will not be repeatable.
d)The experiment will not have variables.

Answers

Answer;

The experiment would lack a control group

Explanation;

-An experiment deliberately imposes a treatment on a group of objects or subjects in the interest of observing the response.

-Experimental design involves taking time and effort to organize the experiment properly to ensure that the right type of data, and enough of it, is available to answer the questions of interest as clearly and efficiently as possible.

-A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements.

"The experiment will lack a control" is the one among the following choices given in the question that would most likely occur if an experimental design specifies only a test group. The correct option among all the options that are given in the question is the first option or option "a". I hope the answer has helped you.

What do birds have that distinguishes them from other organisms?a. Four-chambered he21
c. Amniotic eggs
b. Wings
d. Feathers

Answers

The answer is d. Feathers.

Feathers are epidermal growths characteristic only for birds and it is the trait that distinguishes them from the other organisms.

The other three characteristics they share with other organisms:
- Four-chambered heart is a characteristic of crocodiles, birds, and mammals.
- Reptiles, birds, and mammals, belong to the group of Amniote, which means their eggs are amniotic. Amniotic eggs are either laid on land or retained inside the mother, unlike anamniotic eggs that are laid in the water.
- Wings are characteristic for birds and some mammals, such as bats. But their wings are analogues which mean they evolved independently.

Which of the following are examples of trisomy?Turner Syndrome, Down's syndrome, or Klinefelter's Syndrome

Answers

Example of Trisomy 21 detected... the presence , which is found in Down syndrome, is calledtrisomy 21. ... Of these, Trisomy 21 and Trisomy 18 are the most common. ... XXX (Triple X syndrome); XXY (Klinefelter syndrome); XYY ... Turner syndrome (XO).

so i think all are right

What effect has breast cancer research had on society?

Answers

Increased survival rates for those affected by Breast Cancer. Also, a union of community that raises awareness aka non profits that raise money from walks and marathons, etc. On another positive level - it has increased awareness of this cancer to the public via self screenings and breast cancer screenings via mammagrams thus resulting in earlier interventions that in turn increase survival rates.

Answer;

People who have gene mutations have more treatment options.

Explanation;

-Breast cancer is a complex disease with no simple solution, which is why researchers are tackling it from every angle. Researchers around the world are working to find better ways to prevent, detect, and treat breast cancer, and to improve the quality of life of patients and survivors.

-Some of the active areas of research include; Breast cancer causes, causes and treatment of metastatic breast cancer, reducing breast cancer risk, and breast cancer treatment among others.

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