Which of these infectious, viral diseases affects the immune system and can cause major damage to organs such as the liver and brain?

What is the following best defines climate?

I’m stuck on this question cuz i’m stupid sksksksk

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters