George Floyd Protesters in Washington DC

The video provides an introduction to postcards, discussing their significance and uses.

What is a postcard primarily used for?

• To make phone calls

• To send digital messages

• To store data

• To share visual and written messages

What is a common feature of postcards?

• They are always digital

• They contain both images and text

• They are used for phone communication

• They are primarily used for storing files

Why is maintaining a good back posture important?

• It prevents back pain and related issues

• It helps in improving digestion

• It increases height

• It enhances mental clarity

Which of the following is NOT a benefit of good back posture?

• Increased stress levels

• Reduced back pain

• Better spinal alignment

• Improved breathing

Which activity can help maintain a healthy back posture?

• Slouching while sitting

• Regular exercise and stretching

• Sleeping on a very soft mattress

• Carrying heavy bags on one shoulder