Answer:
Carbon Dioxide
Explanation:
During cellular respiration, glucose and oxygen are converted into carbon dioxide.
Number 1 is C
And im not sure about the rest :(
Earth's crust is made of rock, and rock is made of natural substances called minerals. There are three main types of rock: sedimentary, igneous, and metamorphic rock. Each type is produced in different ways. The oldest rocks on Earth were formed about 3.8 billion years ago.
A,B,C and D
A. increase in the number of available neurotransmitters
B. decrease in the number of available neurotransmitters
C. increase in the number of receptors and receptor sites
D. the ability of the synapse to change in strength and function when the pathway is overused or underused
