A car with a mass of 2000 kg and a boat with a mass of 500 kg are both moving at the same speed. What is the ratio of the kinetic energy of the car to the kinetic energy of the boat?
A. 2:1
B. 4:1
C. 9:1
D. 16:1

*will mark brainliest* certain species of are now recognized as indicators of environmental pollution. a. lichen b. mushroom c. yeast d. none of the above

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above