Agriculture
Middle school science adventures
Springing forward
Where Have All the Bees Gone?
Amphibians
Bullfrogs
Frogs and Toads
Toads
Animals
Copybees
A Butterfly's New Green Glow
Return of the Lost Limbs
Behavior
Talking with Hands
Training Your Brain to Feel Less Pain
Primate Memory Showdown
Birds
Waterfowl
Pigeons
Rheas
Chemistry and Materials
A Light Delay
Atomic Drive
Putting the Squeeze on Toothpaste
Computers
Play for Science
Lighting goes digital
The solar system's biggest junkyard
Dinosaurs and Fossils
Watery Fate for Nature's Gliders
An Ancient Spider's Web
Early Birds Ready to Rumble
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
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Earth
Coral Islands Survive a Tsunami
Killer Space Rock Snuffed Out Ancient Life
Digging into a Tsunami Disaster
Environment
Giant snakes invading North America
Inspired by Nature
A Vulture's Hidden Enemy
Finding the Past
Decoding a Beverage Jar
Oldest Writing in the New World
Sahara Cemetery
Fish
Megamouth Sharks
Halibut
A Grim Future for Some Killer Whales
Food and Nutrition
The Color of Health
The Essence of Celery
Eat Out, Eat Smart
GSAT English Rules
Pronouns
Finding Subjects and Verbs
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
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How a Venus Flytrap Snaps Shut
Human Body
Smiles Turn Away Colds
Kids now getting 'adult' disease
Disease Detectives
Invertebrates
Caterpillars
Mussels
Crustaceans
Mammals
Chinchillas
Opposum
Marsupials
Parents
Raise a Lifelong Reader by Reading Aloud
Expert report highlights the importance to parents of reading to children!
Choosing a Preschool: What to Consider
Physics
Dreams of Floating in Space
Speedy stars
Invisibility Ring
Plants
Bright Blooms That Glow
Farms sprout in cities
Cactus Goo for Clean Water
Reptiles
Alligators
Pythons
Gila Monsters
Space and Astronomy
A Galaxy Far, Far, Far Away
Burst Busters
A Darker, Warmer Red Planet
Technology and Engineering
Musclebots Take Some Steps
Beyond Bar Codes
Sugar Power for Cell Phones
The Parts of Speech
Countable and Uncountable Nouns
What is a Preposition?
Adjectives and Adverbs
Transportation
Robots on a Rocky Road
Morphing a Wing to Save Fuel
Reach for the Sky
Weather
Weekend Weather Really Is Different
Arctic Melt
Recipe for a Hurricane
Add your Article

Who vs. That vs. Which

Rule 1

Who refers to people. That and which refer to groups or things.

Examples:
Anya is the one who rescued the bird.
Lokua is on the team that won first place. 
She belongs to an organization that specializes in saving endangered species.

Rule 2

That introduces essential clauses while which introduces nonessential clauses.

Examples:
I do not trust products that claim "all natural ingredients" because this phrase can mean almost anything.
We would not know which products were being discussed without the that clause.
The product claiming "all natural ingredients," which appeared in the Sunday newspaper, is on sale.
The product is already identified. Therefore, which begins a nonessential clause.

NOTE: Essential clauses do not have commas surrounding them while nonessential clauses are surrounded by commas.

Rule 3

If this, that, these, or those has already introduced an essential clause, you may use which to introduce the next clause, whether it is essential or nonessential.

Examples:
That is a decision which you must live with for the rest of your life.
Those ideas, which we've discussed thoroughly enough, do not need to be addressed again.

NOTE: Often, you can streamline your sentence by leaving out which.

Example:
That is a decision which you must live with for the rest of your life.

Better:
That is a decision you must live with for the rest of your life.

 

Who vs. That vs. Which









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