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Ann [662]
3 years ago
5

What factor limits the number of eclipses per year?

Biology
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

The tilt of the moon's orbit around the earth

Explanation:

On average of twice a year, throughout it's orbit, the moon will create a 180° angle with the Earth making the Earth's shadow visible on the surface of the moon causing a solar eclipse.

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How can atmospheric nitrogen be converted to ammonium ions or nitrate ions?
Agata [3.3K]

Answer: When a plant or animal dies, or an animal voids waste products, the initial form of nitrogen is organic. Bacteria and fungi in the soil produce enzymes that convert the organic nitrogen back into inorganic ammonium ions (NH4 +). Ammonium is converted to nitrite ions (NO2 -) by soil bacteria like Nitrosomonas

Explanation: Hope it helps

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3 0
2 years ago
Drag each of the following organs to the appropriate organ system. Labels can be used more than once if the organ is a major par
Sergio039 [100]

Answer:

Nervous-brain as the components of the central nervous system,together with the spinal cord.

Digestive-Stomach as the components of the upper digestive or alimentary canal.It is for temporary storage and digestion of foods.

Small intestine where final digestion and absorption takes place

Respiratory-Lungs.-paired in mammals is for exchange of gases.

-Trachea as part of the upper respiratory system,conducts airways to the lungs

Reproductive-Ovary female reproductive organ for ova production

Urinary-Ureter for conducting urine to the bladder from the kidney to penis and orifice in females to the exterior.

Cardiovascular( the heart and the blood vessels)- heart the pumping organ into the blood vessels.

Endocrine-Thyroid gland for secretions of thyroid hormones -T3 and T4.

Pancreas for insulin and glucagon productions,and helps in digestion,

Integumentary-Skin,for protection of the body.

Lymphatic-Spleen.This forms the lymphatic system  for formation of un reabsorbed tissue fluids the lymph.

Skeletal-Bones for support and rigidity of the body,by attaching to the bones,

Muscular system-muscles for stability of the body in mammals.

Explanation:

5 0
3 years ago
7. How did scientists determine the age of the ocean floor?
lara31 [8.8K]

Answer:

a. By Calculating magnetic reversals.

Explanation:

They determine the age of the ocean floor by examining magnetic fields in the planet Earth.

6 0
2 years ago
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Please help lolololol
SVEN [57.7K]

Answer:

a

Explanation:

7 0
3 years ago
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Use the following study to answer the following question: A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 uni
Ksenya-84 [330]
I believe the answer is the weight of each tomato.

This is because the weight of each tomato depends on the amount of fertilizer (the independent variable/the thing being changed) added to each plant. 
8 0
3 years ago
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