Which biome is home to half of earth's species?
a. tropical rain forest
b. taiga
c. temperate deciduous forest
d. grassland

Rain forest i believe.

There are still species we haven't discovered in rainforest in places such as Madagascar and the Amazon. There is also a greater variety of vegetation than anywhere else which provides different foods to different animal species.

B) as the temperature increases, the kinetic energy of the particles increases.|-/

The car would move to the right with 150 n of force. the 150 n of force from friction and air resistance slows the car from moving to the right with 300 n of force.