How do benign and malignant tumor differ? Malignant tumors can usually be completely removed with surgery; benign tumors cannot.
Benign tumors are harmless; malignant tumors are life-threatening.
Malignant tumors are painless; benign tumors cause pain when they invade or press on nerves.
Benign tumors are surrounded by a capsule; malignant tumors invade surrounding tissue.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

The speed of light can be used to measure the

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.