Elements
this is a compound
What is sugar?
This is true about a chemical reaction.
What is all of the atoms in the reactants will be a part of the products?
This is identified as the identical index fossils in rock layers from two different areas. The conclusion best supported by this discovery.
What is the two rock layers were deposited at approximately the same time?
This is the disease that is caused by a fungal infection.
What is athlete's foot?
This would indicate why the water in a lake is not safe for drinking.
What is high turbidity levels in the lake?
The best estimate of the melting point of Rubdium
What is 40C?
This is the most responsible for creating acid rain pollution.
What is coal-burning power plants?
This supports the theory that some mountains were once at the bottom of an ocean.
What is fossils of marine organisms are found on the tops of some mountains?
This is the difference between pandemics and epidemics.
What is pandemics affect many countries or states; an epidemic is more localized?
This is how a large increase in the salinity of an estuary most likely affect the ecosystem of the estuary.
What is the number of salt-tolerant organisms would increase, and the number of salt-tolerant organisms would decrease?
This is classified as an element.
What is iron?
This is the best equation that represents the Law of Conservation of Mass.
What is 2H2 + O2 = 2H2O?
What is most of Earth's freshwater is frozen water?
This is one possible human benefit from biotechnology research.
What is producing crops that can grow in areas where they normally do not grow?
This best explains why all of the Earth's freshwater is not available for human use.
What is most of Earth's freshwater is frozen water?
This is a nonrenewable resource.
What is oil?
This is one possible human benefit from biotechnology research.
What is producing crops that can grow in areas where they normally do not grow?
This is the best reason for scientists to study ice cores obtained from Earth's ice caps.
What is to study past climates by analyzing trapped gases and particles?
This is the most likely result of overusing a particular antibiotic.
What is more infections caused by bacteria resistant to the antibiotic?
This is if a lake has excess levels of phosphates and nitrates in its water, what will most likely result.
What is the growth of algae in the lake will increase?
This is the sequence of the elements in Period 5 of the periodic table.
What is highly reactive metals, relatively nonreactive metals, metalloids, reactive nonmetals, nonreactive gases?
Two different liquids are poured together in an open container. Bubbles begin to form. After the bubbling stops, it is determined that the total weight of the two liquids is less than before they were poured together.
What is some of the atoms during the reaction escaped into the air?
This is most likely a major concern associated with burning fossil fuels.
This is why digestion and respiration are important to the human body.
What is they help provide the energy needed for body functions?
This is in some environments, wolves prey on deer for their source of food. If all of the wolves were taken from the environment, this would most likely happen to the deer population.
What is the deer population would increase and begin to compete for food?