Seudónimo Seudónimo

08-06-2017
Chemistry

contestada

does the percentage of oxygen in the air decrease as altitude increases

PLZ HELP ASAP 20pts

Respuesta :

Аноним Аноним

18-06-2017

Yes it does. The higher up in the air you go, the harder it is to breathe. That is why it is hard to climb mountains.

Answer Link

Otras preguntas

what is the definition of imperialism

Which of the following was a product exported by the Olmec, is closely associated with their name, and lends strength to the argument that they were the origina

what reputation did the city-state of Sparta have among other Greeks?

A coin bank has 250 coins, dimes and quarters, worth $39.25. How many of each type of coin are there?

do you add or multiply when finding area

a____is a ratio that compares a number 100

Which Roman Emperor built a massive wall across Northern Britain in 122 A.D.?

The ratio of the number of beads Karen had to the number of beads Patricia had was 2:5 .After Patricia bought another 75 beads,the ratio became 4:15.How many be

there are 750 spectators in the stadium, of which 420 are women and the rest are men. a) what percent of the spectators are women b) what percent of spectator

would the europeans have taken the same course in africa if the people there had been christians like themselves ?