Answers please help me I need to pass this class

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

What are igneous intrusions and extrusions