GEC-PE: SET A-2D

The invention of a three field system of crop rotation happened during____.

• Ancient Origin

• Early to Modern Civilization

• Modern Era

• Pre-historic Era

He was the first inventor to harness solar power directly in the 7th century B.C.

TRUE OR FALSE. The mesosphere is considered as the coldest layer in the Earth's atmosphere.

The type of energy comes from beneath the Earth's surface, which can be harnessed for electricity generation and heating.

• GEOTHERMAL ENERGY

• COAL

• HYDROPOWER

• NATURAL GAS

This is a form of intensive subsistence agriculture that involves growing a variety of plants on the same field simultaneously.

Weather pertains to the atmospheric conditions over a long period.

• TRUE

• FALSE

This is produced by the anaerobic digestion of organic materials (such as food waste, agricultural residues, and sewage) by bacteria.

The layer of the atmosphere where we can find the ozone layer.

• TROPOSPHERE

• MESOSPHERE

• STRATOSPHERE

• THERMOSPHERE

The form of subsistence agriculture in which short periods of cultivation are followed by longer periods of fallow (land being left uncultivated), during which the land reverts to forest is called shifting cultivation.

• TRUE

• FALSE

This happens when we experience abnormalities in weather patterns.