Which are long chains of subunits formed by the process of polymerization? Check all that apply.

A. subunits

B. macromolecules

C. monomers

D. polymers

E. ethylene

F. DNA

A train is moving at a constant speed on a surface inclined upward at 15.0° with the horizontal and travels 300 meters in 5 seconds. Calculate the horizontal velocity of the train at the end of 3 seconds.

If there is 8g substance before a physical change, how much will be afterwards? 0g 4g 8g 16g

9. How are the fossils in question 8 formed?

Whats 46/50 as a percent?

Much of the pollution in our oceans comes from: organic pesticides fumes and smog car exhaust sewage and industrial waste

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham