Asap spend time looking at various web sites provided by your teacher, and determine some of the difficulties faced by people as they expanded their countries prior to the advent of modern technology. after studying these sites, be prepared to answer the following question in a 250 word essay: choose a country, and list geographical features that made growth and expansion difficult and what people did to overcome them.

Ibelieve it was because of the gas act in order to preserve fuel 

Water enters the atmosphere through photosynthesis.

Ithink the correct answer would be false. having volumes of two triangular prisms being the same does not mean that they are congruent. you can only say that shapes are congruent when you can slide, flip or turn one so that it would fit exactly to the other shape. the can be congruent when the side length and the measurement of the angles in the shapes are the same or equal. having equal volumes does not necessarily mean they have the same measurement of their angles and side lengths. they could have different slant heights and the areas of their bases.