Answer:
Many human needs are met by plants and trees.
Most human needs for food, clothing, energy and medicinal needs are all met by plants and fruits, meat plants. Animals also depend on the existence of plants, meat fruits, and plants. Oxygen supply, carbon uptake from the environment and rainwater uptake into the soil, soil stabilization and prevention of soil erosion (high winds and showers) are other benefits of trees and plants in the environment.
The green space and the floral aroma of plants brought peace, joy and happiness to human beings. One of the most important places covered with trees and green space is the best place for recreation and human leisure. Existence of green space and trees can make the environment happy in landscapes and increase human life. Foliage of trees and plants absorbs airborne dust and reduces air pollution.
Airborne lead is the result of the activity of industrial units and motor vehicles and is one of the toxic and dangerous substances for humans, which is absorbed through respiration and has adverse effects and consequences on human health, which are caused by dense trees.
Answer:so if 4.6M = 4.6 billion years, then 1m = 1billion years so...
1m = billion years
1cm= 1000 million years
1mm= 1million years.
Explanation: you can solve this by doing conversion or write down each years value. Since Cm is lower than M, so we know it will be in the thousands of millions. Since mm is lower than cm it will be in the one’s place.
Answer:
C). Corundum
Explanation:
Corundum is a crystalline type of aluminum oxide that usually contains iron, titanium, vanadium and chromium traces. Corundum is an incredibly durable and hard material. It is the third hardest mineral, after moissanite and diamond.
A geologist determine that a sample of a mineral can’t be scratched by a steel naill but can be scratched by a Masonary drill bit. Based on this information, the sample mineral has to be softer than CORUNDUM.
Due to Corundum's hardness , it can scratch almost every other mineral, and Since corundum is harder than the drill bit of masonry that can smash the mineral sample and thus the mineral sample must be softer than corundum.
The land area of Australia is about the same size as the land area of the continental United States. The correct option among all the options given in the question is option "D". Australia is the sixth largest country in the world in respect to its size. Russia, Canada, Brazil, USA and China have a larger area than the continent of Australia.
