9 Questions
Which symbol represents addition in arithmetic?
What are the four basic operations of arithmetic?
Addition, subtraction, multiplication, division
What is the commutative property of addition?
The order of the operands does not matter
Climate change is primarily caused by humans burning
fossil fuels
Greenhouse gases absorb some of the heat that the Earth radiates after it warms from
sunlight
Due to climate change, deserts are expanding, while heat waves and wildfires are becoming
more common
Climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate.
True
Fossil fuel use, deforestation, and some agricultural and industrial practices increase ______, notably carbon dioxide and methane.
greenhouse gases
Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and ______ loss.
sea ice
Study Notes
Arithmetic Operations
- The symbol "+" represents addition in arithmetic.
- The four basic operations of arithmetic are: addition, subtraction, multiplication, and division.
Climate Change
- Climate change is primarily caused by human activities.
- Greenhouse gases absorb some of the heat that the Earth radiates after it warms from the sun.
- Climate change describes the ongoing increase in global average temperature and its effects on Earth's climate system.
- Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane.
- Effects of climate change include:
- Deserts expanding
- Heat waves and wildfires becoming more frequent
- Melting permafrost
- Glacial retreat
- Sea ice loss
Test your addition skills with our quiz! From simple single-digit sums to more complex multi-digit equations, challenge yourself to solve a variety of addition problems. Improve your mental math and accuracy while having fun with numbers.
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