Abiotic factors of the environment Practice exercise 1

A farmer in Nyeri wants to grow cabbage but notices they grow poorly in one section. He is advised to test the soil pH. Why is soil pH important for cabbage growth?  (1mark)

A farmer in Nyeri wants to grow cabbage but notices they grow poorly in one section. He is advised to test the soil pH. Why is soil pH important for cabbage growth?  (1mark)

A hen in Embu lays eggs and sits on them to keep them warm. Explain how temperature as an abiotic factor helps the chicks to hatch.  (1 mark)

A hen in Embu lays eggs and sits on them to keep them warm. Explain how temperature as an abiotic factor helps the chicks to hatch.  (1 mark)

Look at the image below of a class with potted plants near the window. Explain why the teacher placed the plants near the window instead of the middle of the classroom.  (1 mark)

Look at the image below of a class with potted plants near the window. Explain why the teacher placed the plants near the window instead of the middle of the classroom.  (1 mark)

Look at the image below of a class with potted plants near the window. Explain why the teacher placed the plants near the window instead of the middle of the classroom.  (1 mark)

A farmer in Kitale is preparing to plant maize. Explain why the amount of rainfall is an important factor before planting. (1 mark)

A farmer in Kitale is preparing to plant maize. Explain why the amount of rainfall is an important factor before planting. (1 mark)

Refer to the image below showing a fish pond with bubbling water. Explain why air is important for fish in the pond.  (1 mark)

Refer to the image below showing a fish pond with bubbling water. Explain why air is important for fish in the pond.  (1 mark)

A fish farmer in Kilifi notices that fish in one pond are dying, while those in another pond are healthy. He later discovers that salty runoff water from a nearby sea entered the dying pond. Explain how salinity as an abiotic factor could have led to the fish dying.  (2 marks)

A fish farmer in Kilifi notices that fish in one pond are dying, while those in another pond are healthy. He later discovers that salty runoff water from a nearby sea entered the dying pond. Explain how salinity as an abiotic factor could have led to the fish dying.  (2 marks)

A fish farmer in Kilifi notices that fish in one pond are dying, while those in another pond are healthy. He later discovers that salty runoff water from a nearby sea entered the dying pond. Explain how salinity as an abiotic factor could have led to the fish dying.  (2 marks)

A tomato farmer in Murang’a applied acidic fertilizer to his land, and after two weeks, the tomato plants started turning yellow and dropping flowers. Explain how soil pH as an abiotic factor could have affected the tomato plants.  (2 marks)

A tomato farmer in Murang’a applied acidic fertilizer to his land, and after two weeks, the tomato plants started turning yellow and dropping flowers. Explain how soil pH as an abiotic factor could have affected the tomato plants.  (2 marks)

A farmer in Naivasha grew healthy maize plants, but they failed to produce cobs. The area had no wind for several weeks. Explain how wind, as an abiotic factor, affected maize production.  (2 marks)

A farmer in Naivasha grew healthy maize plants, but they failed to produce cobs. The area had no wind for several weeks. Explain how wind, as an abiotic factor, affected maize production.  (2 marks)

A farmer in Naivasha grew healthy maize plants, but they failed to produce cobs. The area had no wind for several weeks. Explain how wind, as an abiotic factor, affected maize production.  (2 marks)

A group of hikers visiting Mount Elgon started feeling dizzy and tired as they climbed higher. Explain how atmospheric pressure as an abiotic factor caused this condition.  (1 mark)

A group of hikers visiting Mount Elgon started feeling dizzy and tired as they climbed higher. Explain how atmospheric pressure as an abiotic factor caused this condition.  (1 mark)

Refer to the image below showing withered crops during a drought. Farmers in Wajir have lost most of their crops due to extended dry weather. Explain how water, as an abiotic factor, has affected plant growth and survival in this situation.  (2 marks)

Refer to the image below showing withered crops during a drought. Farmers in Wajir have lost most of their crops due to extended dry weather. Explain how water, as an abiotic factor, has affected plant growth and survival in this situation.  (2 marks)