1.what is matter?

matter is a compound
matter is anything that is made of organic substance and is found on the earth
matter is an element
matter is anything made up of atoms and that has mass

2.which statement best describes electrons?

electrons have a positive charge
electrons orbit around the nucleus
electrons in the nucleus
electrons are composed of protons and neutrons

3.two or more atoms can be held together through

protons
energy
neutrons
electrons

1. Matter is anything that has mass and takes up space.
2. Electrons orbit around the nucleus.
3. protons and electrons

Sorry i don’t know what to do

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.