Exam 3: The Universal Context of Life

In the context of life in the universe, which of the following discoveries of astronomy suggests that there has been plenty of time for life to have appeared and evolved elsewhere?

In the process of nuclear fusion,

The main chemical building blocks of life, carbon, hydrogen, oxygen, and nitrogen were formed

In the nebular theory, the process by which planets form is referred to as

Measurement of the spectrum of light reflected from a planet gives us information on its

A liquid transforms into a gas at the

How many electrons are present in the ion of the isotope of oxygen, ¹⁸O^3! if oxygen has an atomic number of 8?

Between the orbits of the planets Mars and Jupiter we find

The most abundant materials in the solar nebula were

The nearest star is at a distance of 4.4 light-years. Given that light travels at 300,000 km/s in space, how far away is the nearest star in kilometers (km)?

Given the basic building blocks of planets are widespread and the same laws of physics operate everywhere, we would expect

In the context of life in the universe, which of the following discoveries of astronomy suggests that extraterrestrial life may be constructed in a similar fashion to life on Earth?

Which of the following sequence of electromagnetic radiations is in order of increasing wavelength?

The Zeta Reticuli star system is approximately 3.7 x 1014 km from Earth. Given that light travels at 300,000 km/s in space, how far away is this star system in light years?

A smooth distribution of light across a broad range of wavelengths is referred to as

Assuming the encounter hypothesis is correct and planets can only form from the gravitational interactions between passing stars, what implications does this have for the possibility of life elsewhere in the universe?

The distance between adjacent peaks of an electromagnetic wave is referred to as its

If we compress the entire history of the Earth into one year, modern humans appear

The process of planet formation in the early solar system is best described by which of the following terms?

Which of the following properties of the planets in our solar system is not explained by condensation theory?