Which of these is an example of land contamination?

A. Agricultural runoff

B. A clear-cut forest

C. An eroding hillside

D. Arid land

In a series circuit with five identical bulbs, which bulb lights up first?

A hollow cubical box is 0.766 m on an edge. This box is floating in a lake with 1/6 of its height beneath the surface. The walls of the box have a negligible thickness. Water is poured into the box.

Can track storms at different altitudes

Rock that is composed of different layers can begin eroding from the inside this creating an arch true or false

Is light and optics the same

Which statement is true about the atom? A: it contains positive electrons, uncharged protons and negative protons. B: it contains uncharged neutrons, positive electrons and negative protons.

Steel objects can become temporary magnets because they are mainly composed of which element?

How long does it takes the sun to rotate the earth?

Which explains how winds move?

Why is it important to develop alternative energy sources