HelpContactFor teachers and institutes
>_StemPy Lab
Mock TestsClassesGroups

>_StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

  • Physics
  • Chemistry
  • Mathematics
  • Biology
  • Python Programming
  • Statistics & Data Science
  • Classes
  • Groups

Practice

  • Problems
  • Quizzes
  • Mock Tests
  • Prepare for an Exam
  • Question Sets
  • Exams
  • Certificates
  • Python Labs
  • AI Practice Generator
  • Student-Created Tests

Community

  • Discussions
  • Resources
  • Notes
  • Blog

Account

  • Dashboard
  • My Content
  • Profile
  • Log in
© 2026 senLearn. All rights reserved.HelpAboutContactPrivacy PolicyTerms of UseRefund Policy
  1. Problems
  2. /Ecology and Environment
  3. /Pollution and Conservation

Pollution and Conservation

Biology
+ Upload a Problem
More in Ecology and EnvironmentEcosystems and Food ChainsCycles in NaturePollution and ConservationNatural ResourcesOrganisms and PopulationsBiodiversity and Conservation
10 problems
Exam:
Type:
1.
A school canteen makes 18 kg of kitchen waste on each of 22 school days in a month… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Hard
2.
Put each item into the green bin (wet waste) or the blue bin (dry waste): onion peels, a milk… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Easy
3.
A railway once planned to serve all tea in kulhads instead of plastic cups… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
4.
A family of 5 throws away about 380 g of garbage per person each day… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
5.
A town throws away 2400 kg of waste each day, and 55 % of it is biodegradable… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
6.
A cotton shirt buried in soil is gone in a few months, but a plastic bag buried beside it is still… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
7.
Rina empties her dustbin: mango peels, a newspaper, a chips packet, a broken glass, a cotton… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Easy
8.
Name two uses of CFCs that harmed the ozone layer… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
9.
In a small region of the upper atmosphere, ultraviolet light splits 45 oxygen molecules… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Medium
10.
Anil says that ozone and the oxygen we breathe are the same gas… New
High School (9–10), General · Pollution and ConservationStemPy LabStemPy Lab
Easy