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Combined Science: Chemistry

GCSE · Edexcel · foundation

QuestionsFlashcards

Obtaining & Using Metals
Reversible Reactions & Equilibria
- Reversible Reactions & Equilibrium
  3
- The Haber Process
  4

Group 1
- Group 1 (Alkali Metals)
  4
- Group 1: Reactivity & Electronic Configurations
  4
Group 7
Group 0

Greenhouse Gases Flashcards

All 4 cards in this deck

What is the approximate composition of today's atmosphere?: About 80% nitrogen and about 20% oxygen (21%), with small amounts of other gases. Argon is the third most common gas.
Name three greenhouse gases found in the atmosphere.: Carbon dioxide, methane and water vapour.
What is the greenhouse effect?: Gases in the atmosphere absorb heat radiated from the Earth and re-radiate it back, keeping the Earth warm.
True or false? The greenhouse effect is caused by a hole in the ozone layer.: False. It is caused by gases such as carbon dioxide, methane and water vapour absorbing and re-radiating heat radiated from the Earth.