#1
What is the term for the process by which radioactive elements decay over time?
Radioactive decay
ExplanationRadioactive decay is the natural process by which unstable isotopes transform into more stable forms over time.
#2
Which of the following is a potential consequence of radioactive contamination on wildlife ecosystems?
Genetic mutations
ExplanationRadiation exposure may lead to heritable genetic changes in affected species.
#3
What is one way in which radioactive contamination can affect the behavior of wildlife?
Changes in feeding habits
ExplanationAltered behavior, such as feeding habits, can result from exposure to radioactive substances.
#4
How can radioactive contamination impact the reproductive success of wildlife?
By reducing the number of offspring produced
ExplanationReduced reproductive success can result from exposure to radiation, affecting population dynamics.
#5
Which of the following is a primary source of radioactive contamination in wildlife ecosystems?
Nuclear accidents
ExplanationAccidents involving nuclear materials release radioactive substances into ecosystems.
#6
What is the main pathway through which radioactive contamination enters wildlife ecosystems?
Airborne dispersion
ExplanationAirborne dispersion spreads radioactive substances, impacting various ecosystems.
#7
Which of the following is an example of a long-term effect of radioactive contamination on wildlife ecosystems?
Permanent alteration of genetic makeup
ExplanationGenetic changes may persist, causing lasting impacts on species within ecosystems.
#8
What is bioaccumulation in the context of radioactive contamination?
The process of radioactive elements being absorbed and retained by organisms
ExplanationOrganisms accumulate radioactive elements, posing a risk to higher trophic levels.
#9
What role do isotopes play in radioactive contamination?
They emit radiation
ExplanationIsotopes release radiation, contributing to the harmful effects of radioactive contamination.
#10
Which of the following is a potential consequence of radioactive contamination on the food chain?
Increased biomagnification
ExplanationRadioactive substances concentrate as they move up the food chain, posing higher risks to top predators.
#11
Which of the following regions would likely experience the most severe consequences of radioactive contamination on wildlife ecosystems?
Tropical rainforests
ExplanationDiverse ecosystems like tropical rainforests may face complex and severe impacts due to radioactive contamination.