Answer:Astronomers estimate the age of the universe in two ways: 1) by looking for the oldest stars; and 2) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang; just as crime detectives can trace the origin of a bullet from the holes in a wall.
Explanation:
A short term environment change would be drought, smog, volcanic eruptions, and blizzards. All because it only last for a small period of time and it can affect the way certain species will have to adapt to certain environments.
Tile 1 is “transverse wave”
And tile 2 is “longitudinal waves.”
Answer:
Sensory neurons send the impact of signals received from the senses and it delivers to the brain.
<u>Explanation:</u>
- Sensory neuron is a type of neuron that provides a relay type of information based on the signals received from the active parts of the body.
- Sensory neuron and motor neurons are connected to the central nervous system.
- If a person stubs on his toe, the impact of pain expressed to him is noted by the sensory neurons.
- These sensory neurons travel to the path of the brain after getting a proper signal of impulse from the senses.
- After receiving those signals, the brain sends necessary action to impart those signals.
- So the person feels the effect of pain and makes him to remove his leg from the toe.
The dimensioning system in which <span>numerals are placed in line with the dimension line is called the <u> aligned </u> system. In the <u> unidirectional</u><u> </u>system all numerals read from the bottom.</span>
