Which of these factors is a disadvantage of hybrid cars? A. Less gasoline is required.
B. They produce fewer emissions than standard cars.
C. Federal incentives reduce the initial cost.
D. Replacement batteries are expensive.

What did the first language sound like

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)