1. PART A: Which statement describes the central idea of
the text?
A All sports are based on the natural laws of physics
and can be easily explained and even predicted with
physics.
B Players are more likely to succeed in a sport if they
study the physics behind it, rather than physically
TH
OC Baseball can be explained and improved by collecting
data and studying the natural laws at play in the
sport.
D When pitchers and batters step onto the baseball
field, they consider all of the forces at play on the ball
and bat.

d. the two authors are in awe of nature; their experiences, reveal that time in nature can change people.

explanation:

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.