Answer:Spectroscopy helps astronomers to determine the composition, temperature, density, and motion of an object.
Infrared spectroscopy helps to identify the atoms and molecules in the object.
The red shift or blue shift (Doppler Effect) in a spectral line tells how fast the object is receding from Earth or coming toward it.
The Doppler shift enables astronomers to discover extrasolar planets.
As a planet orbits its star, the star is alternately moving away from or toward us.
Astronomers can use the Doppler shifts to calculate the speed of the star and the mass of the planet that is tugging on it.
Explanation:
<span>Describes a system of naming something using two names, or words.
Binomial means "two" and nomenclature means "list of names"
OR
</span><span>He developed systems for both naming species and organizing them into groups and his</span> system of binomial nomenclature made communication about certain species much easier
Answer:
Small leaves
Explanation:
These ensure that less water is lost from the plant by transpiration because the leaf has a smaller surface area.