Examlex
Biofuels are not efficient energy sources because of the associated high land use and high net energy.
Chemical Sample
A small part or quantity of a chemical substance taken to be analytically tested or evaluated.
Density
The mass of a substance per unit volume, often indicated as kilograms per cubic meter (kg/m^3) or grams per cubic centimeter (g/cm^3).
Mass
The property of a physical body that quantifies the amount of material contained within it, influencing the body's resistance to acceleration.
Density
The mass per unit volume of a substance, commonly expressed in grams per cubic centimeter or kilograms per cubic meter.
Q9: Wave action and microbial degradation are natural
Q16: In Canada, metallic minerals are concentrated in
Q18: What are the environmental effects of mining
Q19: Which statement characterizes igneous rocks?<br>A)They include limestone
Q43: _ is a dynamic system that, through
Q60: What is one method of decommissioning nuclear
Q62: A(n) _ is a flat tract of
Q76: What is onecomponent of sustainable management of
Q85: What can deplete oxygen in a body
Q94: A relationship between poverty and soil erosion