Brief account on 3 R’s to save the environment. What do they refer to? Its importance in the sustainable use of resources. Give your own opinions and ways.

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits