<span>On earth, the four major spheres interact as a system.
Atmosphere, biosphere, hydrosphere are absent.
Carbon, Oxygen cycle.
water circuit
tsunami (there is no water so no tsunami)
absence of life
there is no atmosphere so all meteorites directly interact with moon surface. On Earth they can be burn into the atmosphere due to the friction process</span>
Answer:
The BOD5 for this sample is 5 mg/L
Explanation:
The BOD5 takes into consideration the difference between the initial DO and the final DO divided by the fraction of the sample tested in a 300 mL BOD flask. The problem states that the sample was directly placed in a BOD bottle so we assume that the volume used was 300 mL of the water sample. The fraction of water is 1 (300/300).

BOD5 = (10-5)/1
BOD 5 = 5 mg/L
Answer:
Option A will be the appropriate choice.
Explanation:
- The pre-Colombian age encompasses all phase subdivisions throughout American history before the arrival of major European developments on either the American continent, overlapping the duration of the first establishment throughout the Upper Paleolithic era to European colonization mostly during the early medieval century.
- This applies to something like the opportunities ahead of European explorers including colonization arriving.
The other three methods aren't relevant to the particular circumstance. Such that the aforementioned will be the right decision.
Answer: The correct options are:
<em>exerts more pressure as it increases
</em>
<em>measures how tightly molecules are packed
</em>
<em>equals mass divided by volume</em>
Explanation:
Air density can be described as mass per unit of volume of the volume of air.
As the altitude increases, the air density tens to decrease. Hence, option A is not correct.
The density of the air determined how many atoms of air can occur in a particular volume, In other words, it determines how tightly or loosely atoms of air are packed in a particular volume.
Hence, when the air density will increase, the molecules will be more tightly packed and the pressure will be more.
Answer:
English in the U.S, Hindi in India, Bengali in Bangladesh, and Punjabi in Pakistan are all total different languages. I myself only know 3 Korean, English and Chinese. For example imagine I didn't know English and only Korean and traveled to the USA. It would be really hard to ask for something because I wouldn't know the language! So that is how language acts as a centripetal force.
Explanation: