Concept explainers
Interpretation:
Two most abundant element on Earth’s crust has to be chosen from the given options.
Concept Introduction:
Element is a pure substance and it cannot be broken down into simpler pure substance by chemical means like
Elements that are laboratory synthesized are radioactive in nature and they convert back into the original naturally occurring element by emission of radiation. All the elements that occur naturally are not evenly distributed on earth and universe.
Radiations that are emitted from stars can be used to estimate the elemental composition of universe. This indicates that hydrogen and helium are mostly dominant. On Earth’s crust oxygen and silicon are the two elements that account for about
Trending nowThis is a popular solution!
Chapter 1 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- The majority of water found on Earth is: a. ice b. water vapor c. fresh water d. salt waterarrow_forwardThese are natural sources of air pollution responsible for as much as two-thirds of the methane in the air. a. Volcanoes b. Bacterial metabolism of decaying organism c. Pollen and Spores d. Storms Which of the following BEST describes water? a. Water is composed of 2 atoms of Oxygen and 1 atom of Hydrogen. b. Water is odorless, clear and has a sour taste. c. Water is liquid at 0 degree Celsius. d. Water is the most abundant compound in the Earth's surface.arrow_forwardWhich of the following substances are required by all organisms?a. organic nutrients b. inorganic nutrients c. growth factors d. oxygen gasarrow_forward
- Which of the following pairs of words are most clearly opposites? a. biodegradable, recalcitrant b. activated sludge, sewage c. carbon dioxide, methane d. SIV, HIVarrow_forwardThe Earth’s atmosphere consists of 78% nitrogen. Why do you think that plants and animals can’t use nitrogen as it is found in the atmosphere?arrow_forwardWhich of the following is an Organic Compund? a. Salt b. Water c. Calcium d. Vitamin Carrow_forward
- When water goes below 0OC, it: Group of answer choices A. vaporizes and becomes unavailable to organisms. B. can crystallize inside of cells and burst the cells. C. is more likely to be contaminated with toxic microbes. D. A and B E. B and Carrow_forwardBread dough made from wheat flour will leaven (rise) when left at room temperature for 30 min because: a. pathogenic bacteria like E. coli double in population density every 30 minutes at room temperature b. it contains sodium acetate which lowers the pH to 4.5 c. yeast added to the dough consume sucrose (table sugar) and produce ethanol + CO2 (carbon dioxide gas) during this 30 min period at room temperature d. egg white albumen protein was painted onto the surface prior to baking e. gluten in the dough traps gases that are produced during the fermentation that occurs during this 30 min period at room temperaturearrow_forwardA sample of a igneous rock contains small amounts of radioactive potassium and argon. Using the ratio of 40Ar to 40K, it is determined that only 25% of the original parent isotope remained. How old is this rock sample? Please include thought process and a therefore statement. Thank you very much, have a good day!arrow_forward
- original materials are organisms preserved in materials such as A. Dirt B. snow C. diamonds D. Amberarrow_forwardWhich of the following best describes a decomposer a.An organism that feeds on biological remains and breaks down organic material into its inorganic subunits b.An animal that feeds on small bits of organic material c.An organism that obtains energy directly from the environment and carbon from inorganic sourcesarrow_forward1.2.2 Quiz: Themes in Biology Question 1 of 10 What enables a whale to move its fins in the ocean? C A. Energy from the rotation of Earth B. Energy directly from the sun C. Energy directly from its food D. Energy from the ocean currents PREVIOUS 2 6 O SUBMITarrow_forward