1
the clearing or thinning of forests by humans.
2
small pieces of rubbish that have been left lying on the ground in public places.
3
Earth is a rocky, terrestrial planet.
4
the place something comes from or starts at, or the cause of something.
5
waste material; refuse or litter.
6
a box or other lidded container.
7
tell someone that you will hurt or harm him or her.
8
the introduction of harmful materials into the environment.
9
a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials.
10
injury or harm that is caused to something
11
made up of a collection of landforms, such as mountains, hills, plains, and plateaus.
12
a raw natural resource that is extracted from the earth and used to propel vehicles, heat bulidings, produce electricity, and make everyday products.
13
a sedimentary deposit composed predominantly of carbon that is readily combustible.
14
a type of natural disaster that can cause heavy destruction to life and property.
15
a substance that has specific properties or characteristics we can use to identify it.
16
a building or group of buildings with facilities for the manufacture of goods.
17
a deficiency of precipitation over an extended period of time (usually a season or more), resulting in a water shortage.
18
a liquid obtained from petroleum, used especially as a fuel for cars and other vehicles.
19
living things and especially mammals, birds, and fishes that are neither human nor domesticated.
