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stiv31 [10]
3 years ago
15

Day and night are caused by Earth's revolution on its axis. T or f

Biology
2 answers:
JulijaS [17]3 years ago
7 0

the correct answer it true.

xenn [34]3 years ago
6 0

Answer:

i belive it is true

Explanation:

We get day and night because the Earth spins (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. It takes 24 hours for the world to turn all the way around, and we call this a day.

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What causes the formation of trenches in Earth’s crust?
GuDViN [60]

Answer:

Trenches are formed by subsection, a geophysical process in which two or more of Earth's tectonic plates converge and the older, denser plate is pushed beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust (the lithosphere) to bend and form a steep, V-shaped depression.

Explanation:

5 0
2 years ago
5 point
vazorg [7]

Answer:

I'll answer your question if you answer mine

Explanation:

How much time will be required for a sample of H-3 to get to 6.25 grams from an original sample of 50.0 grams? The half-life of tritium is 12.26 years.

Answer it then I'll answer yours

6 0
3 years ago
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Which of the following best represents the relationship of the concentration of hydrogen ions between water, vinegar, and ammoni
aalyn [17]

Answer: The second image best represents the relationship of the concentration of hydrogen ions between water, vinegar and ammonia.

Explanation: pH is the measure of alkalinity and acidity of a substance in a logarithmic scale.

Mathematically,

pH=-\log[H^+]

The solutions which lie in the pH range of 0 - 6.9 are considered as acidic solutions and they have more hydrogen ion concentration.

The solution which has a pH value of 7 is considered as a neutral solution and this solution has same hydrogen and hydroxide ion concentration.

The solutions which lie in the pH range of 7.1 - 14 are considered as basic solutions and they have less hydrogen ion concentration.

  • For vinegar, the hydrogen ion concentration is very high.
  • For water, the hydrogen ion concentration will be equal to the hydroxide ion concentration.
  • For ammonia, the hydrogen ion concentration is very less.
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3 years ago
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Is it more efficient from an energy standpoint to be a vegetarian vs. an omnivore?
lesantik [10]
Vegetarian is the best choice

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3 years ago
What is a major disadvantage of environmental science
Goshia [24]
Inability to control variables
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