[Answered] How many elements are essential to life? A) 10 B) 30 C) 70 D) ...

This topic contains a solution. Click here to go to the answer

Author Question: How many elements are essential to life? A) 10 B) 30 C) 70 D) ... (Read 56 times)

RODY.ELKHALIL

Hero Member
Posts: 591

on: Aug 27, 2018

How many elements are essential to life?

A) 10
B) 30
C) 70
D) 110

Question 2

The efficiency of current solar cells is approximately

A) 3.
B) 15.
C) 25.
D) 75.

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

bigcheese9

Sr. Member
Posts: 333

Reply #1 on: Aug 27, 2018

Answer to Question 1

B

Answer to Question 2

B

RODY.ELKHALIL

Member
Posts: 591

Reply 2 on: Aug 27, 2018

TYSM

Hdosisshsbshs

Member
Posts: 315

Reply 3 on: Yesterday

YES! Correct, THANKS for helping me on my review

« previous next »

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.