Impact of primary activities

Impact of primary activities

- All humans need to eat to survive - ammount of food consumed varies

- Calories recommended: 2,200 but the average person eats 3,000 calories daily

- Food distribution is NOT even

Food Security

When a person is able to obtain a sufficient ammount of healthy food on a day-to-day basis

Food insecurity

• 850 million people live with less than the recommended ammount

• Chronic hunger and poor nutrition

• Less likely to have healthy and productive lives.

Multiple Choice

How many kilocalories does the average person cosume on a daily basis?

• 1000

• 2200

• 3000

• 5000

Multiple Choice

What is the main cause of food insecurity?

• Poor nutrition

• Chronic hunger

• Less productive lives

• Uneven distribution of food

Impact of primary activities: Agriculture

Agriculture: the act of growing crops and raising livestock for human use and consumption

• 10,000 years ago, our ancestors started producing their own food

• 2 types of agriculture: industrialized and subsistance

Industrialized agriculture

• Large quantities of crops and livestock are produced through industrial techniques

• Use of machines, chemical fertilizers, pesticides

• Monoculture: single crop is planted on a large scale

Subsistance agriculture

• Farmers with small land that produces to feed their household --> a little is sold

• Use of animals, manure and natural predators

• Polyculture: different crops are planted in one area

Multiple Choice

How many years ago did humans begin producing their own food?

• 500 years ago

• 10,000 years ago

• 1,500 years ago

• That doesn't happen yet

Multiple Choice

Which of the following is NOT a method utilized by industrialized agriculture to increase crop yields?

• Monocultures

• Chemical fertilizers

• Pesticides

• Hand tools

Problems in agriculture

• Loss of agricultural land - erosion, urban needs

• Decreased varieties - loss of genetic diversity

• Land degradation - land changes and quality is reduced

• Habitat fragmentation - the environment is divided into smaller patches