A student conducts an investigation using mall spares. In one part of the investigation, he needs to closely examine a spore sample. Whach piece of equipment does the student need to we to keep mekl spares from entering his respiratory system?

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;