Question

QUESTION 1 while the partial pressure of the atmosphere remains constant, the fractional compostion changes depending on the total pressure. O True False QUESTION 2 energy. Energy released from an object and transmitted via particles or waves is referred to as OA Mechanical C Electrical ,°C. Radiant D.Chemical QUESTION 3 The first living organism on planet Earth was most likely a A Photosynthetic autotroph B. heterotroph (herbivore) o C. Heterotroph (carnivore) O D. Chemoautolithotroph

Answer 1

1: False
Partial pressure of oxygen changes while the fractional composition remains constant. Example: the fractional composition of oxygen is 21% in air at all the altitudes but its partial pressure reduces with increased height.

2: radiant energy

Energy released from object and transmitted via particles or waves is called as radiant energy.

One of the example is the energy from Sun.