Answer the following question given this paragraph: Lattice energy of an ionic solid is a measure of the strength of bonds in that ionic compound. Q: What does lattice energy of an ionic solid measure the strength of? Choices: - metals - atoms - electrons - bonds A:
bonds
Answer the following question given this paragraph: As has been noted in numerous Things Great and Small vignettes, this is not the first time the large has been explained by the small and vice versa. Newton realized that the nature of gravity on Earth that pulls an apple to the ground could explain the motion of the moon and planets so much farther away. Minute atoms and molecules explain the chemistry of substances on a much larger scale. Decays of tiny nuclei explain the hot interior of the Earth. Fusion of nuclei likewise explains the energy of stars. Today, the patterns in particle physics seem to be explaining the evolution and character of the universe. And the nature of the universe has implications for unexplored regions of particle physics. Cosmology is the study of the character and evolution of the universe. What are the major characteristics of the universe as we know them today? First, there are approximately 10 11 galaxies in the observable part of the universe. An average galaxy contains more than 10 11 stars, with our Milky Way galaxy being larger than average, both in its number of stars and its dimensions. Ours is a spiral-shaped galaxy with a diameter of about 100,000 light years and a thickness of about 2000 light years in the arms with a central bulge about 10,000 light years across. The Sun lies about 30,000 light years from the center near the galactic plane. There are significant clouds of gas, and there is a halo of less-dense regions of stars surrounding the main body. (See Figure 34.3. ) Evidence strongly suggests the existence of a large amount of additional matter in galaxies that does not produce lightthe mysterious dark matter we shall later discuss. Q: Newton realized that the nature of gravity on earth that pulls an apple to the ground could explain the motion of these? Choices: - seasons - atoms and quarks - molecules - moon and planets A:
moon and planets
Q: Answer the following question given this paragraph: Q: Lodgepole cones remain closed until exposed to what? Choices: - predators - precipitation - UV light - extreme heat A:
A: extreme heat
Question: Answer the following question given this paragraph: Q: When is melatonin secreted? Choices: - in the afternoon - all day - in the morning - at night A:
Answer: at night
*Question*
Answer the following question given this paragraph: Large ocean currents can have a big impact on the climate of nearby coasts. The Gulf Stream, for example, carries warm water from near the equator up the eastern coast of North America. Look at the map in Figure below . It shows how the Gulf Stream warms both the water and land along the coast. Q: Which factor has a big impact on coastal climates? Choices: - ocean waves - tsunami - tide - large ocean currents A:
**Answer**
large ocean currents
Q: Answer the following question given this paragraph: The first case of West Nile virus in North America occurred in 1999. Within just a few years, the virus had spread throughout most of the United States. Birds as well as humans can be infected with the virus. Birds often fly long distances. This is one reason why West Nile virus spread so quickly. Q: Where did west nile first appear? Choices: - Central America - North Africa - Southeast Asia - north america A:
A: north america