Which statement describes planetesimals? Select 3 options.
A) They are the origins of planets.
B) They formed from gas and dust.
C) They were created during the Big Bang.
D) They are believed to have developed in debris disks.
E) They contain 98 percent of matter in the solar system.

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Which is an example of an exothermic process?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.