Answer:
True
Explanation:
It's True
There can be phases of sleep, one of them is the phase of REM or Rapid Eye Movement, once we reach this stage of active sleep, and our muscles lose tonality, making it very difficult to maintain a sitting position. Our shoulders continue to stretch or slip to the other side as we sit upright, which can cause pain. There are also other concerns but it should also be remembered that an adult needs to sleep upright under certain circumstances.
A hypothesis is a prediction drawn from a theory.
Answer: C
Explanation:
Why A is wrong: the most forest cover was lost between 1990 and 200.
Why B is wrong: The decline since 19190 has not been completely steady, different amounts have been lost.
Why D is wrong: The average lost every five years is more than five million.
Hope this helps!
Answer:
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.
Explanation:
