Some scientists estimate that with the full use of plants' capabilities in feeding the world, the population could safely rise to billion.
a. 20
b. 50
c. 80
d. 100

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease. correct answer for apex - a, its nonpolar end dissolves the grease.

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.