Which best describes why projectiles move in a curved path? They have constant horizontal velocity and vertical acceleration.
They have horizontal acceleration and vertical momentum.
They have horizontal acceleration and constant vertical velocity.
They have horizontal momentum and constant vertical velocity.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.