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kari74 [83]
3 years ago
14

Careful measurements reveal that a star maintains a steady apparent brightness at most times, except that at precise intervals o

f 73 hours the star becomes significantly dimmer for about 2 hours. The most likely explanation is that ____.
Geography
1 answer:
Anit [1.1K]3 years ago
7 0

Answer:

The star is a member of an eclipsing binary star system

Explanation:

  • A careful explanation about the measurement reveals that the star maintains a steady and apparent shape of brightness and at most of the time remains brighter.
  • With and usual intervals of about the 73 hours and then the star becomes contestant dimmer for about every toe hours and is due to the fact that the star is a member of the eclipsing system.
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Us
Mekhanik [1.2K]

Answer:

C

Explanation:

The water cycle is powered by heat from the Sun that allows water to change phase. Solar heating causes surface water to evaporate and join the atmosphere as water vapor. The water vapor then condenses to form clouds and, depending on the height of the clouds and the latitude, falls as solid or liquid precipitation back to the surface.

Without solar heating, all the water on Earth would freeze solid and there would be no atmosphere or rain.

5 0
3 years ago
What do you mean by mohorovicic discontinuity ​
Lera25 [3.4K]

Answer:

The Moho is the boundary between the crust and the mantle in the earth. Also termed the Mohorovicic' discontinuity after the Croatian seismologist Andrija Mohorovicic' (1857-1936) who discovered it. The boundary is between 25 and 60 km deep beneath the continents and between 5 and 8 km deep beneath the ocean floor.

The Mohorovičić discontinuity usually referred to as the Moho discontinuity or the Moho, is the boundary between the Earth's crust and the mantle. It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.

7 0
3 years ago
Which describes how weathering and erosion are different? Weathering is caused by water. Erosion is caused by wind and ice. Eros
Alchen [17]

The correct answer is Erosion transports sediments.

Explanation:

Both erosion and weathering are related to the components of soils such as rocks breaking into smaller pieces due to factors such as pressure, chemical reactions, among others. Moreover, the whole process is known as weathering is the remaining pieces or particles remain in the same location. On the opposite, if these are displaced by air, water, etc. it is considered erosion. This means erosion implies the transports of the sediments after weathering.

3 0
3 years ago
How many of the world's 20 largest cities are located in Western Europe?
jasenka [17]

Answer:

one

Explanation:

London

6 0
3 years ago
Read 2 more answers
Which of the following best describes the economic situation in Bangladesh?
Scrat [10]

Answer: C

Explanation: Let's use some background knowledge and common sense of why the answer is C. It does have a poor economy but not much rapid economic growth which is why A is out. It may have reserve in minerals but not much investment is going on like in India. D may be right about neither incredibly wealthy but most of its population which lives in its capital city of Dhaka all live below the poverty line. It is however very impoverished and densely populated. It borders east of India and was also part of Pakistan 60-50 years ago.

Hope this helps.

6 0
2 years ago
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