Solution 1
Surface tension is the property of the surface of a liquid which allows it to resist an external force. It is due to the cohesive nature (stickiness and clumpability) of the water molecules. Since water has a strong surface tension:
1) The surface tension of water provides the necessary wall tension for the formation of bubbles with water
2) It is responsible for the shape of liquid droplets, too
3) Small objects will "float" on the surface of a fluid, as long as the object cannot break through and separate the top layer of water molecules
If surface tension is weak, the reverse happens. Bubbles will come from round to spherical, small objects will not float, water will fall as it is, without forming spherical droplets and will not immediately spread.
📚 Related Questions
Long story, short, this question is worded weirdly, because all theories are the above definition. An educated guess in everyday life isn’t a theory; it is a hypothesis. Secondly, the most basic definition of theory is “a well-supported explanation that is accepted as true until it is falsified,” so the answer can be both A and D. If I had to pick one though, I would go with D.
The indigestible carbohydrates that are found in plant cell walls are called dietary fibers. Dietary fibers are group of complex carbohydrates that is found mostly in vegetables, fruits and legumes. They include beans, whole grains such as wheat, nuts etc. Dietary fibers cannot be digested in mammals because the body lacks digestive enzyme that is required to break them down.
Answer:
The correct answer is - cleaning ballast water.
Explanation:
In the great lakes, 65% of the invasive species come from the ships that carry ballast water tanks to stabilize them on the long route journeys, this release invasive species when loading and unloading cargo.
Cleaning up these ballast water is one of the most effective ways to stop the new invasive to enter the Great Lakes.
Answer:
carbohydrates
Explanation:
The eruption of Mount Tambora was a huge one, and the amount of ash it released into the atmosphere managed to affect the whole world in the coming year and a half to two years, depending on the place.
The ash in the atmosphere was slightly reducing the amount of sunlight that was reaching the Earth, and because of that the temperatures were lower. The biggest problem was occurring during the night because the temperatures were going significantly lower than usual.
The crops were suffering very badly because of the sudden change of the climate, so big portion of them were either dying or producing very small amounts. That led to a famine, and around 80,000 people died from starvation.
Answer:
The eruption of Mount Tambora was a huge one, and the amount of ash it released into the atmosphere managed to affect the whole world in the coming year and a half to two years, depending on the place.
C
hope i helped
Answer:
D. appear similar from each side
Explanation:
Elliptical galaxies are a type of galaxy that have a spherical or ellipsoidal shape, and have no spiral-shaped structure. The vast majority of these galaxies have little gas, little dust and few young stars. More expressly, they look a lot like the nucleus and halo of spiral galaxies. Some are quite elongated and some very flat if viewed from Earth, however their shape is basically similar on each side.
About one third of the galaxies are elliptical in shape. Elliptical galaxies range in size from dwarf galaxies, often difficult to distinguish from globular clusters, to giant galaxies such as M70, a giant elliptical galaxy in the constellation Virgo.
100% right
Answer:
The littoral zone is the part of the lake that is close to the shore. It exhibit very low biological activity, but contains higher oxygen content. The water in the littoral zone of lake is freshwater being unaffected by the living organisms like plants and fishes.