Our Changing Earth quiz

The point on the surface directly above the focus is the:

Earthquakes are recorded by a:

Forces acting from inside the Earth are:

An ox-bow lake is formed by a:

The highest waterfall in the world is:

Mushroom rocks are formed by:

Material deposited by a glacier is called:

Sea stacks are formed by the action of:

Fine sand deposited by wind over large areas is:

The Bhuj earthquake occurred in:

What is a meander? (2 marks)

What are levees? (2 marks)

What is a delta? Name one delta of India. (2 marks)

How is a sea cave formed? (2 marks)

What are sand dunes? (2 marks)

Name two exogenic agents of change. (2 marks)

What is a floodplain? (2 marks)

Why are earthquakes common in the Himalayan region? (2 marks)

What is a beach? (2 marks)

How do glaciers erode land? (2 marks)

An earthquake of magnitude 6 shakes the ground about 10 times more than one of magnitude 5. How many times more does an earthquake of magnitude 8 shake compared to one of magnitude 5? (3 marks)

A sea cliff retreats by about 2 m every year due to wave erosion. How far will it retreat in 25 years? If a house is 80 m from the cliff edge, after how many years will it be at risk? (3 marks)

A river carries 500 tonnes of sediment per day to its mouth. How many tonnes is that in a year (365 days)? (3 marks)

An earthquake struck at 10:00 am GMT. What was the time in India (IST = GMT + 5 hours 30 minutes)? What was the time in a place 3 hours behind GMT? (3 marks)

A glacier moves about 50 cm a day. How far does it move in a year (365 days), in metres? (3 marks)

Read the passage and answer the questions. On 26 January 2001, while people were celebrating Republic Day, a strong earthquake struck Bhuj in Gujarat. Thousands died and buildings collapsed. (i) What causes earthquakes? (ii) Why did many buildings collapse? (iii) Suggest two ways to reduce damage in future. (5 marks)

Read the passage and answer the questions. The Ganga and Brahmaputra form the world's largest delta in West Bengal and Bangladesh, called the Sundarbans delta. (i) How is a delta formed? (ii) Why is a delta fertile? (iii) What are distributaries? (5 marks)

Read the passage and answer the questions. Along a rocky coast, students saw a natural bridge of rock over the sea and a tall pillar of rock standing alone in the water. (i) What is the natural bridge called? (ii) What is the pillar called? (iii) Which agent formed them? (5 marks)

Read the passage and answer the questions. In the Thar desert, wind blows sand and deposits it in low hill-like heaps that keep shifting. (i) Name these features. (ii) Why do they shift? (iii) Name one erosional feature formed by wind. (5 marks)

Read the passage and answer the questions. In a hilly region, a river flowed over hard rock and then soft rock, forming a steep drop. (i) What landform is formed? (ii) Why did it form here? (iii) Name one famous waterfall in India. (5 marks)

Explain the work of a river from source to mouth, with labelled diagrams of a waterfall, meander and delta. (6 marks)

Explain how earthquakes occur, with a labelled diagram, and list safety measures. (6 marks)

Describe the landforms made by sea waves with labelled diagrams. (6 marks)

Explain the work of wind and glaciers with examples of landforms they form. (6 marks)

Distinguish between endogenic and exogenic forces and explain how both shape the Earth's surface, with a flowchart. (6 marks)