Select all that apply. Three possible reasons for the expansion of smaller kingdoms are .

The grass is greener elsewhere.
Leaders are greedy for more power and land.
It is better to be larger than smaller.
Neighbours are becoming too strong.
A larger population requires more food.

The graph below plots the temperature and luminosity of stars on the main sequence.

Choose the false statement. a. some organisms fossilize when frozen or dried out. b. bacteria can destroy dead plants and animals. c. it is common for a plant or animal to fossilize when it dies. d. rapid burial under small-sized sediment increases the chance for fossilization to occur.

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine