r Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater? a caliper and a flask a stopwatch and a beaker a balance and a graduated cylinder a meter stick and a temperature probe

The correct answer is C. A balance and a graduated cylinder

Explanation:

Considering density is calculated by dividing the total mass by the volume (d= M/V) to know the density of a substance, you will need to know first the mass and the volume of it. In the case of mass, this refers to the amount of matter and can be measured with instruments such as balances and using units such as grams or kilograms. On the other hand, the volume is the space occupied by the substance which is measure in litters or millimeters through instruments such as beakers, graduated cylinders, and similar. Thus, the two pair of instruments that are adequate from the options is a balance that measures the mass and a graduated cylinder that measures the volume.

it would be heredity

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.