CBRS EXAM CERTIFICATION SCRIPT 2026
FULL QUESTIONS WITH DETAILED
SOLUTIONS GRADED A+
⩥ Second Law of Thermodynamics.
Answer: When energy is changed from one form to another, some useful
energy is always degraded into lower quality energy (usually heat).
⩥ Hydrologic Cycle Components.
Answer: evaporation, transpiration, runoff, condensation, precipitation,
and infiltration.
⩥ Watershed.
Answer: all of the land that drains into a body of water
⩥ Aquifer.
Answer: any water-bearing layer in the ground.
⩥ La Nina.
Answer: Easterly trade winds and ocean currents pool warm water in the
western Pacific, allowing upwelling of nutrient rich water off the West
coast of South America.
,⩥ Nitrogen Fixation.
Answer: because atmospheric N cannot be used directly by plants, it
must first be converted into ammonia by bacteria.
⩥ Ammonification.
Answer: decomposers covert organic waste into ammonia.
⩥ Nitrification.
Answer: ammonia is converted to nitrate ions (NO -).
⩥ Assimilation.
Answer: inorganic N is converted into organic molecules such as
DNA/amino acids & proteins.
⩥ Denitrification.
Answer: bacteria convert ammonia back into N.
⩥ Phosphorus.
Answer: does not exist as a gas; released by weathering of phosphate
rocks, it is a major limiting factor for plant growth. Phosphorus cycle is
slow, and not atmospheric.
⩥ Photosynthesis.
, Answer: plants convert CO2 (atmospheric C) into complex
carbohydrates (glucose C6H12O6).
⩥ Aerobic Respiration.
Answer: oxygen consuming producers, consumers & decomposers break
down complex organic compounds & convert carbon back into CO2.
⩥ Biotic.
Answer: living components of an ecosystem.
⩥ Abiotic.
Answer: nonliving components of an ecosystem
⩥ Producer/Autotroph.
Answer: organisms that make their own food—photosynthetic life.
⩥ Trophic Levels.
Answer: producers → primary consumer → secondary consumer →
tertiary consumer.
⩥ Energy Flow through Food Webs.
FULL QUESTIONS WITH DETAILED
SOLUTIONS GRADED A+
⩥ Second Law of Thermodynamics.
Answer: When energy is changed from one form to another, some useful
energy is always degraded into lower quality energy (usually heat).
⩥ Hydrologic Cycle Components.
Answer: evaporation, transpiration, runoff, condensation, precipitation,
and infiltration.
⩥ Watershed.
Answer: all of the land that drains into a body of water
⩥ Aquifer.
Answer: any water-bearing layer in the ground.
⩥ La Nina.
Answer: Easterly trade winds and ocean currents pool warm water in the
western Pacific, allowing upwelling of nutrient rich water off the West
coast of South America.
,⩥ Nitrogen Fixation.
Answer: because atmospheric N cannot be used directly by plants, it
must first be converted into ammonia by bacteria.
⩥ Ammonification.
Answer: decomposers covert organic waste into ammonia.
⩥ Nitrification.
Answer: ammonia is converted to nitrate ions (NO -).
⩥ Assimilation.
Answer: inorganic N is converted into organic molecules such as
DNA/amino acids & proteins.
⩥ Denitrification.
Answer: bacteria convert ammonia back into N.
⩥ Phosphorus.
Answer: does not exist as a gas; released by weathering of phosphate
rocks, it is a major limiting factor for plant growth. Phosphorus cycle is
slow, and not atmospheric.
⩥ Photosynthesis.
, Answer: plants convert CO2 (atmospheric C) into complex
carbohydrates (glucose C6H12O6).
⩥ Aerobic Respiration.
Answer: oxygen consuming producers, consumers & decomposers break
down complex organic compounds & convert carbon back into CO2.
⩥ Biotic.
Answer: living components of an ecosystem.
⩥ Abiotic.
Answer: nonliving components of an ecosystem
⩥ Producer/Autotroph.
Answer: organisms that make their own food—photosynthetic life.
⩥ Trophic Levels.
Answer: producers → primary consumer → secondary consumer →
tertiary consumer.
⩥ Energy Flow through Food Webs.
