WorksheetsGlobal warming
Total questions: 16
Worksheet time: 10mins
The layer that surrounds the earth is called
supersphere
atmosphere
sphere
Choose 2 examples of greenhouse gases.
Oxygen
Carbon dioxide
Helium
Methane
What is 二氧化碳 in English?
oxygen
nitrogen
carbon monoxide
carbon dioxide
Choose two activities that gives out carbon dioxide.
What is 甲烷 in English?
carbon dioxide
methane
greenhouse gases
Where do methane gas comes from usually?
From our food
From plants
From things that are rotting
From animals
Carbon dioxide and methane are also known as (a) gases.
The heat from the sun gets reflected by the layer of ________ and keeps the earth warm.
greenhouse gases
oxygen
air
When the layer of greenhouse gases is thin, some of the heat from the sun ____
stays in the atmosphere.
escapes the atmosphere.
When the layer of greenhouse gases is thick, the heat ____
escape from the earth.
stays in the atmosphere.
When there is too much heat on earth, it will cause (a) warming.
Choose 2 things that give out carbon dioxide.
Human respiration/ breathing
Tree transpiration
A fire
What is that plant's process that removes carbon dioxide from the air?
Pyrosynthesis
Photosynthesis
Choose 2 effects of global warming.
Earth's temperature is going up.
Earth is getting colder
The sea levels maintain the same.
The sea levels are rising.
Global warming causes drought.
True
False
How does global warming causes drought? Choose 3 correct answers
The earth temperature goes up.
The earth gets flooded.
More evaporation happens.
The land becomes too dry.
The water overflows from the river.
