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Environmental Science Worksheet-6

Environmental Science Worksheet-6

 

  1. Which layer of gas in the atmosphere protects the Earth from the Sun's UV rays?

(a) Nitrogen layer                         (b) Anti UV layer

(c) Ozone layer                              (d) Infrared layer

 

  1. What is the smog pollution made of?

(a) Coal and Air                            (b) Coal and water vapor

(c) Air and water vapor              (d) Smoke and fog

 

  1. What is magma?

(a) Hot molten rocks deep below the Earth's surface are called magma

(b) Hot molten rocks on the Earth's surface are called magma

(c) Mixture of gases and minerals in the mantle layer

(d) Hot molten rocks above the mantle layer

 

  1. The magma that comes out of volcano and flows on the Earth's surface is called ________.

(a) molten rock                             (b) lava

(c) java                                            (d) liquid rock

 

  1. Where is the energy of the Sun stored in an ecosystem?

(a) In tanks as food energy.

(b) In food as food energy.

(c) In animals as physical energy.

(d) In the oceans

 

  1. Which of these first captures the energy of the Sun as food?

(a) Animals       (b) Plants           (c) Bacteria       (d) Moss

 

  1. Which ore gives us iron?

(a) Bauxite                                     (b) Molybdenite

(c) Granite                                     (d) Hematite

 

  1. Some minerals are made of a single element but most minerals are made of ______.

(a) iron and aluminum              

(b) rock and gems fused together

(c) compounds (two or more elements chemically joined)

(d) exact five elements

 

  1. Bending of a plant towards the light source is called ______.

(a) Hydrotropism                         (b) Phototropism

(c) Negative gravitropism (d) Electrotropism

 

  1. Root growth towards a source of water of a plant is called ______.

(a) Phototropism                          (b) Gravitropism

(c) Hydrotropism                         (d) Electrotropism

 

Answer Key:

(1)–(c); (2)–(d); (3)–(a); (4)–(b); (5)–(b); (6)–(b); (7)–(d); (8)–(c); (9)–(b); (10)–(c)