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LekaFEV [45]
3 years ago
11

Natural resources a. are inputs provided by nature. b. include land, rivers, and mineral deposits. c. take two forms: renewable

and nonrenewable. d. All of the above are correct.
Biology
1 answer:
elena55 [62]3 years ago
8 0

Answer: d. All of the above are correct.

Explanation: Natural resources are resources provided by nature. They occur in nature without manmade interference. Natural resources include mineral deposits, land water bodies and the atmosphere. These resources are utilized by man for economic, social and educational purposes. Natural resources can be renewable or nonrenewable resources such as water are renewed by rainfall. Heavy manmade activities such as industrialization, war or natural disasters can deplete these resources.

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Explain the relationship between mutations, adaptations, natural selection, and extinctio
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Mutations are like genetic mutations. Say a bird species may usually have a orange beak but one bird was born with blue, that’s a mutation.
Adaptations are things you adapt to like plant species have adapted over the year to receive less and less water to live.
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Make a table summarising the main components of tobacco smoke and their effects on the human body.​
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Answer: Some of the components in tobacco smoke include:

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Radioactive elements, such as polonium-210

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tar – is the word for the solid particles suspended in tobacco smoke. The particles contain chemicals, including cancer-causing substances (carcinogens). Tar is sticky and brown, and stains teeth, fingernails and lung tissue

carbon monoxide – is a poisonous gas. It is odourless and colourless and, in large doses, quickly causes death because it takes the place of oxygen in the blood. In people who smoke, the carbon monoxide in their blood makes it harder for oxygen to get to their organs and muscles

oxidizing chemicals – are highly reactive chemicals that can damage the heart muscles and blood vessels of people who smoke. They react with cholesterol, leading to the build-up of fatty material on artery walls. Their actions lead to heart disease, stroke and blood vessel disease

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less oxygen carried by the blood during exercise

‘stickier’ blood, which is more prone to clotting

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reduced blood flow to extremities (fingers and toes)

increased risk of stroke and heart attack due to blockages of the blood supply.

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Answer:

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