During which era did plants first appear on an island?

a. CenozoicB. Mesozoic

c. PaleozoicD. Precambrian

What units could you use to describe the mass of a tablespoon

A large container of water and a small one are at the same temperature. What can be said about the relative vapor pressures of the water in the two containers?

Which scientist was the first to propose the hellocentric model of the universe?

If an insect population increases and then decreases as the available supply of food changes, what does this demonstrate a. uncontrolled population explosion b. unchecked exponential growth c. unhealthy conditions d. self-regulation

A false statement concerning matter is: Matter cannot be subdivided. Matter is composed of many small particles called atoms. Matter is mostly empty space. All matter contains mass.

Identify the following: 1. The only 2 liquid elements. 2. The element in period 4, group 0. 3. The second metalloid in period 4. 4. The first element in group 4A.

You are about to open a container of soy milk but notice that there are instructions to "shake well before serving." the soy milk is most likely a

Give reason: a. Fractionating columns with beads are used for fractional distillation b. Crystallisation is a better technique than evaporation

How can a gardener remedy soil that is overly acidic?

True or false everything has the same amount of energy?