Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Pricing Schools Business

Chemical Fate in Environment: Pesticide Degradation

12 Questions

0 Views

Chemical Fate in Environment: Pesticide Degradation

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary mechanism by which glyphosate promotes the emergence of glyphosate-resistant weeds?

By increasing the expression of glyphosate-degrading enzymes in weeds

By directly inducing the evolution of glyphosate-resistant weeds through epigenetic modifications

By altering the soil microbiome to favor glyphosate-resistant microorganisms

By selecting for weeds with genetic mutations that confer glyphosate resistance (correct)

What is the primary factor that delays leaching and promotes soil degradation in the fate and transformation of glyphosate in soil?

Volatilization

Immobilization

Adsorption

Mineralization (correct)

Which of the following health effects is NOT associated with glyphosate exposure?

Endocrine disruption

Cardiovascular disease (correct)

Tumors

Reproductive issues

What is the approximate half-life of glyphosate in soil?

45-60 days (C) Signup and view all the answers

What is the primary mechanism by which glyphosate affects microbial populations in soil?

By inhibiting microbial activity (B) Signup and view all the answers

What is the primary factor that affects the dissipation of glyphosate in soil?

Erosivity of rain and erodibility of the soil (C) Signup and view all the answers

Which of the following herbicides is a possible human carcinogen and increases the chance of liver tumors?

Metolachlor (B) Signup and view all the answers

What is the primary method of dissipation for Metolachlor and Acetochlor?

Microbial degradation (A) Signup and view all the answers

Which of the following emerging contaminants are formed through the interaction of residual disinfectants and organic matter in drinking water treatment plants?

Nitrosamines (C) Signup and view all the answers

What is the primary characteristic of Per-Fluoroalkyl Substances (PFAS) that makes them 'forever chemicals'?

They are highly persistent in the environment (D) Signup and view all the answers

Which of the following is an example of a Perfluoroalkyl sulfonamide (FASA) that may degrade to PFSAs and PFCAs?

Perfluoroalkyl sulfonamide ETHANOLS (FASA) (B) Signup and view all the answers

What is the primary purpose of Flame Retardants?

To prevent or slow the growth of fire (D) Signup and view all the answers